resonancen.
/ˈrɛzənəns/, /ˈrɛzn̩əns/, U.S. /ˈrɛzənəns/, /ˈrɛzn̩əns/ 1.
a. The reinforcement or prolongation of sound by reflection or by the synchronous vibration of a surrounding space or a neighbouring object. Also: a sound, or quality of sound, resulting from this.
ΘΚΠ
the world > physical sensation > hearing and noise > degree, kind, or quality of sound > resonance or sonority > [noun]
resonancea1460
reirding1535
resonancy1611
a1460 Knyghthode & Bataile (Pembr. Cambr. 243) l. 787 The Clarioner, Trompet, and Hornycler, With horn & trompe of bras and clarioun..; The firmament therto making resoun Or resonaunce.
a1492 W. Caxton tr. Vitas Patrum (1495) i. xlviii. f. lxxxxii/1 Merueyllous howlynges and waylynges.., wherof the resownaunce or sowne was soo horryble that it semyd it wente vppe to heuen.
1502 tr. Ordynarye of Crysten Men (de Worde) v. vii. sig. ss.v v For the beaute, for ye force & for the resonaunce.
1603 P. Holland tr. Plutarch Morals 67 Let us see (I say) what resonance and melodie bare wood may yeeld.
1663 G. Harvey Archelogia Philosophica Nova II. i. xxiii. 190 This is otherwise called the Ecchoing or resonance of Sounds.
1728 E. Chambers Cycl. (at cited word) The Mouth, and the Parts thereof, as the Palate..and Lips,..contribute nothing to the Tone of the Voice; but their effect is very great as to the Resonance.
1776 C. Burney Gen. Hist. Music I. 155 Resonance is but an aggregate of echos, or of quick repetitions and returns of the same sound.
1876 tr. P. Blaserna Theory Sound ii. 41 A room in which sound shall be considerably strengthened without degenerating into resonance.
1903 W. D. Howells Lett. Home xxvi. 153 She began to fill the hallway..with the rich resonance of her laugh.
1974 Gramophone Nov. 974/1 A desirable record, with sound that is very good and might have been better with just a shade more resonance.
2006 Mod. Drummer Nov. 30 They're also huge-sounding, with a lot of resonance and a particularly long decay.
b. The property of an object of giving rise to this phenomenon.
ΘΚΠ
the world > physical sensation > hearing and noise > degree, kind, or quality of sound > resonance or sonority > [noun] > resonant quality
fullness1440
shillness1486
sonority1623
resonance1669
sonorousness1669
soundingness1727
sonorosity1772
sonoriety1828
plangency1858
canorousness1870
ringingness1874
1669 R. Boyle Absolute Rest in Certain Physiol. Ess. 14 Some famous Lutes..attained not their full seasoning and best resonance till they were about fourscore year old.
1835–6 Todd's Cycl. Anat. & Physiol. I. 481/1 Intended for the reception of the sounds produced by the resonance of the bony case just described.
1875 A. J. Ellis tr. H. L. F. von Helmholtz On Sensations of Tone i. v. §7 The investigation of the resonance of the cavity of the mouth is of great importance.
1920 Amer. Jrnl. Psychol. 31 200 The resonance of the body of the violin is such that it emphasizes the higher tones and their partials.
2006 Mod. Drummer Nov. 77/2 Don't squeeze the sticks by closing the fingers; allow the stick to breathe. Try to hear the resonance of the stick in each stroke.
2. Corresponding or sympathetic response; an instance of this. In later use also: the power or quality of evoking or suggesting images, memories, and emotions; an allusion, connotation, or overtone.
ΚΠ
1594 W. Fowler True Reportarie Baptisme Prince of Scotl. sig. Dii The three great Ships of the Estates..made correspondance and resonance to the number of six score gret shot.
1607 R. C. tr. H. Estienne World of Wonders i. xxxvii. 298 So ought our hearts..to haue no other resonance [Fr. resonnance] but of good thoughts.
a1794 W. Jones Wks. (1799) I. 415 He had merely described the human frame as the noblest and sweetest of musical instruments, endued with a natural disposition to resonance and sympathy, alternately affecting and affected by the soul.
1828 T. Carlyle Burns in Edinb. Rev. Dec. 279 He has a resonance in his bosom for every note of human feeling.
1876 ‘G. Eliot’ Daniel Deronda I. ii. xvii. 339 Hints of this, intended to be complimentary, found an angry resonance in him.
1939 Scrutiny 7 441 In particular, his temperament was painfully out of resonance with his father's.
1976 Southern Evening Echo (Southampton) 16 Nov. 3/5 For much of the piece there is an extra resonance and significance about Gray's otherwise-familiar anti-hero.
2001 A. Solomon Noonday Demon (2002) ii. 77 Bill Stein's story has had considerable resonance for me.
3. Medicine. The intensified sound heard during auscultation or percussion of the lungs or other part of the body that usually contains air or other elements capable of vibration; the degree of such intensification. Also (with distinguishing word): an abnormal sound heard in this way, associated with a pathological collection of air or fluid.percussion, tympanitic resonance: see the first element.
ΘΚΠ
the world > physical sensation > hearing and noise > degree, kind, or quality of sound > sounds heard in body > [noun] > sounds heard in auscultation
bombus1753
hydatism1753
pectoriloquism1820
murmur1821
resonance1821
snoring1822
thrill1822
râle1825
pectoriloquy1826
respiration1826
rhonchus1827
bronchophonism1834
bronchophony1834
hum1839
tick-tack1853
friction-sound1860
friction-fremitus1877
sibilus1887
1821 J. Forbes tr. R. T. H. Laennec Treat. Dis. Chest ii. 333 As soon as the effusion takes place, the resonance of the chest fails over the whole of its site.
1851 Lancet 16 Aug. 155/1 Over, and a little below, the fourth rib, a slight amphoric resonance is heard.
1917 W. D. Rose Physical Diagnosis iv. 70 Upon percussion toward the sternum the osteal resonance of this bone blends with the normal vesicular resonance.
1928 Lancet 24 Nov. 1076/1 Though the lower half of the chest was wanting in resonance, it was not so dull as in empyema.
1968 New Eng. Jrnl. Med. 1 Feb. 280/1 I employ fingertip percussion, progressing from the usual apical resonance to dullness to see how much of the lungs has expanded.
2008 Amer. Jrnl. Cardiol. 102 1279/2 He described..bulging of the epigastrium and decreased resonance in Traube's space.
4.
a. The condition in which an oscillating or periodic force acting on an object or system has a frequency close to that of a natural vibration of the object; a resulting amplification of the natural vibration.This is the phenomenon which gives rise to the resonance of sound (sense 1a).
ΘΚΠ
the world > matter > physics > mechanics > types of motion > [noun] > vibration or oscillation > frequency > resonance
resonance1833
1833 London & Edinb. Philos. Mag. 3 409 If a tuning fork be held over the open end of a pipe pitched in unison with it, the pipe will speak by resonance.
1876 Proc. Musical Assoc. (2nd Sess., 1875–6) 85 He explained the modes of vibration, and the resonance of tubes and columns of air.
1876 A. Bain & A. S. Taylor Arnott's Elements Physics (ed. 7) iii. ii. 350 A tuning-fork at one end of a room will respond to another of the same pitch..at the other end of the room. But the least difference of pitch destroys the resonance.
1935 J. E. Younger Struct. Design Metal Airplanes xv. 272 In the prevention of dangerous structural vibration, the first principle is to avoid resonance.
1952 D. E. Christie Intermediate College Mech. xii. 306 In practical engineering it is frequently desirable to keep forced oscillations well away from resonance.
1959 Listener 5 Feb. 252/1 Where the lengths of waves and ship are almost equal, we experience severe pitch and heave motions... This ‘resonance’ can be destroyed in two ways.
1998 Sci. Amer. (U.K. ed.) May 38/1 The high-pressure sound pulses produced by the tymbals and ribs create a sympathetic resonance in the abdominal air sac.
b. Amplification of wave or tidal motion in a body of water when this motion has the same frequency as a natural vibration of the body of water; a similar phenomenon in the atmosphere.
ΘΚΠ
the world > matter > physics > mechanics > types of motion > [noun] > wave > specific actions of waves
interference1830
refraction1874
resonance1886
1886 Proc. Geogr. Soc. Australasia 1 6 The illustration is a familiar example of the general phenomena of resonance... Every body of water, for example, has a natural period of swing.
1919 Geogr. Jrnl. 53 329 A study of such resonances implies tidal observations outside harbours.
1947 Proc. Royal Soc. A. 192 81 It is now possible to state the conditions under which resonance can occur in the atmosphere.
1990 H. Thurston Tidal Life 19/2 A..common analogy is the oscillation of water in a bathtub, which is why the resonance is often called the bathtub effect.
2004 D. Pugh Changing Sea Levels ix. 226 Most of the tidal energy is dissipated in a few continental shelf areas where there is tidal resonance and large tides.
c. Astronomy. The circumstance or phenomenon of the periods of revolution or rotation of two or more celestial objects (orbiting the same primary) having values in the ratio of small whole numbers (exactly or approximately).
ΘΚΠ
the world > the universe > planet > planetary movement > [noun] > resonance
resonance1913
1913 Science 17 Oct. 554/2 One visible example of this is the gaps in Saturn's rings. These are due to satellite resonance.
1928 Bull. Amer. Math. Soc. 34 283 The millions of ‘stones’ or ‘rocks’ which must constitute those rings revolve round Saturn and resonances are caused by the action of its larger satellites.
1982 F. H. Shu Physical Universe xviii. 469/2 Let us focus on the strongest resonance where the orbital period of a test particle (asteroid or ring particle) is 1/2 that of the perturber (Jupiter or Mimas).
2007 Sci. Amer. (U.K. ed.) Jan. 24/1 Jupiter and Neptune also maintain their own families of asteroids..in special orbits known as stable resonances, where an orbital synchrony prevents collisions with the planets.
5.
a. Physics. A condition in which a particle is subjected to an oscillating influence (such as an electromagnetic field) of such a frequency that a transfer of energy occurs or reaches a maximum; an instance of this; an exchange of energy occurring under such conditions.
ΘΚΠ
the world > matter > chemistry > physical chemistry > other processes > [noun] > resonance
resonance1854
the world > matter > physics > atomic physics > particle physics > [noun] > resonance
resonance1931
1854 Philos. Trans. (Royal Soc.) 144 11 If then a sunbeam..be incident upon a medium so constituted that its particles are capable of vibrating in unison..with some or other of the ethereal vibrations of the incident beam, it must necessarily happen that one system of vibrations will be called into existence by the other according to the laws of resonance.
1895 Abstr. Physical Papers (Physical Soc.) 1 355 It is thus impossible that resonance should obtain between the electric waves of Hertz and the molecules of a body, and consequently impossible for an ordinary prism to disperse electric waves.
1931 Proc. Royal Soc. 1930–31 A. 130 477 The possibility of the occurrence of line spectra due to a resonance between the α-particle and the nucleus.
1959 Physical Rev. Lett. 2 427/1 Quite a narrow resonance (half~width ≦ 20 Mev) appears in these cross sections.
2003 W. Demtröder Laser Spectroscopy (ed. 3) vi. 380 (caption) Spectroscopy inside an external resonator, which is synchronously tuned with the laser frequency..in order to be always in resonance.
b. Chemistry. The property exhibited by certain molecules of having a structure which cannot be adequately represented by a single structural formula, and which can be said to be intermediate between two or more structures differing only in the distribution of electrons; (apparent) alternation between several structures of this type. Also called mesomerism.
ΘΚΠ
the world > matter > chemistry > mesomerism > [noun]
resonance1927
mesomerism1934
the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > resonance
resonance1927
1927 Sci. Abstr. A. 30 84 (heading) The problem of several bodies and resonance in quantum mechanics.
1939 L. Pauling Nature Chem. Bond xii. 408 A substance showing resonance between two or more valence-bond structures does not contain molecules with the configuration and properties usually associated with these structures.
1950 N. V. Sidgwick Chem. Elements I. 525 From the crystal structure of sodium formate Zachariasen has shown that in the ion there is complete resonance between the two CO groups.
1995 D. M. P. Mingos Essent. Inorg. Chem. 1 (1997) 86 In valence bond theory resonance denotes the superposition of wavefunctions to produce a better approximation to the actual wavefunction of the molecule.
2008 J. Yamauchi in G. Likhtenshtein et al. Nitroxides ii. 54 This structural resonance in nitroxide radicals becomes possible because the bond-forming atoms..are neighboring elements and possess odd and even valence-electrons, respectively.
c. Physics and Chemistry. The transition of a particle possessing a magnetic moment between different quantum states when it is in the presence of a magnetic field and electromagnetic radiation of an appropriate frequency; a spectroscopic technique which makes use of this phenomenon. Also magnetic resonance.electron spin resonance, functional magnetic resonance imaging, magnetic resonance accelerator, magnetic resonance imaging, nuclear magnetic resonance: see the first element.
ΘΚΠ
the world > matter > physics > atomic nucleus > [noun] > field of energy > magnetic resonance
resonance1938
nuclear magnetic resonance1942
1938 Physical Rev. 53 318/2 The experimental procedure is to vary the homogeneous field for some given value of the frequency of the oscillating field until the resonance is observed by a drop in intensity at the detector and a subsequent recovery when the resonance value is passed.
1950 Physical Rev. 79 698/1 A situation in which any quadrupolar splitting of the nuclear resonance in a magnetic field is small compared to the magnetic resonance frequency itself.
1995 J. Shreeve Neandertal Enigma (1996) vii. 183 When they flip, each electron absorbs a finite amount from a microwave field also applied to the sample. This energy loss, called resonance, can be measured with a detector.
2003 P. M. Lenahan in J. Greer Nano & Giga Challenges in Microelectronics vii. 244/1 No quantum calculations have yet been carried out in solid state resonance based systems.
d. Particle Physics. A short-lived particle or excited state of a particle that is manifested as an increase in the probability of interaction with other particles at certain energies.
ΘΚΠ
the world > matter > physics > atomic physics > particle physics > [noun] > interaction between particles > increased probability of
resonance1961
1961 Physical Rev. Lett. 7 421/2 Another large peak in the 3-pion mass plot..is seen near 550 Mev, which strongly suggests the existence of a second 3-pion resonance (or particle).
1975 Physics Bull. Dec. 537/3 Excited states of the nucleons, so called resonances, can be produced by inelastic electron scattering.
1996 Nucl. Physics B. (Proc. Suppl.) 47 819 Most hadronic particles are resonances: for example, the ρ meson appears as a resonance in the elastic scattering of two pions.
2006 P. Woit Not even Wrong vii. 94 Believers in the standard model quickly realised that the resonance the experimenters were seeing was a bound state of a charmed quark and an anti-charmed quark.
6. The condition in which an electrical circuit or device produces the largest possible response to an applied oscillatory signal, esp. when its inductive reactance balances its capacitative reactance.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > electric current > alternating current > [noun] > effect of equal currents
resonance1886
the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > oscillation > resonance
resonance1886
1886 O. Heaviside in Electrician 20 Aug. 296/2 By this to-and-fro reflection, or electrical reverberation or resonance, the amplitude of the received current may be made far greater than the strength of the steady-flow current from the same impressed force.
1920 Whittaker's Electr. Engineer's Pocket-bk. (ed. 4) 446 Resonance is rarely established with the fundamental frequency of the supply, but is generally due to harmonics.
1970 Single Sideband for Radio Amateur (Amer. Radio Relay League) (ed. 5) v. 130/2 It should be found possible to load the amplifier so that at plate-circuit resonance the plate current is 160 ma. and the grid current is about 27 ma.
2005 P. J. Sweeney RFID For Dummies iv. 85 They need to match the frequency of the incoming field in order to set up a resonance between the antenna and the field.
7. Art. Richness of colour, esp. that produced by proximity to a contrasting colour or colours. Cf. resonant adj. 1b.
ΘΚΠ
the world > matter > colour > colour relationships > [noun] > enhancement
resonance1894
1894 F. Simmonds tr. E. Michel Rembrandt I. viii. 151 We are amazed at..the resonance [Fr. cliquetis] of colours juxtaposed without fusion, yet melting into harmony.
1933 Burlington Mag. Jan. 3/1 I knew that Titian was a master of rich and sumptuous colour. I knew how splendidly he could evoke from his blues and crimsons their fullest and deepest resonance.
1958 B. Wall tr. G. Ballo Mod. Ital. Painting 112 The subtle rhythms give bright and unified resonance to the colour.
1998 G. Pollock in M. Doezema & E. Milroy Reading Amer. Art xiii. 293 The dress..was painted over a layer of unexpected blue, a color that gives resonance to all colors affected by it.
Compounds
C1. General attributive.
resonance apparatus n.
ΚΠ
1836 Johnson's Universal Cycl. (rev. ed.) VIII. 327/2 The breadth of the sound-waves depends primarily upon the structure..of the vocal organs and of the resonance-apparatus.
c1878 A. Randegger Singing 11 The chest, mouth, or head..only act respectively as the ‘resonance apparatus’ of the voice.
2000 H. Pauly Atom Molecule & Cluster Beams II. iv. 246 Using a setup analogous to the resonance apparatus shown..numerous inelastic integral scattering cross sections have been measured.
resonance box n.
ΚΠ
1860 D. Flanery U.S. Patent 29,686 1/2 J K is what I call the ‘resonance-box’, consisting of an open wooden box..suitable to receive within it the plates A B. The bottom J of this box is made thin, like the sound-board of a musical instrument.
1940 C. Sachs Hist. Musical Instrum. (1942) xii. 239 The modern saron has a wooden resonance box which frequently is carved in the shape of a crouching dragon.
1990 Amer. Jrnl. Physics 58 93/1 The usual form [of the sonometer] is that of a horizontal base or resonance box above which vibrating string or wire can be strung.
resonance vibration n.
ΚΠ
1883 Nature 5 Apr. 532/1 A common defect in speaking in large buildings is inability to catch the keynote or resonance vibration of the inclosed space.
1909 Westm. Gaz. 4 Sept. 10/1 If the period of vibration of the two parts is the same ‘resonance vibrations’ are set up.
1990 Materials Sci. & Engin. A. 128 77/1 Young's modulus and damping..were evaluated at room temperature by longitudinal resonance vibration tests on cylindrical bars.
C2.
resonance absorption n. Physics absorption of energy or of a particle under conditions of resonance; spec. resonance capture of a particle by an atomic nucleus; an instance of this.
ΘΚΠ
the world > matter > physics > atomic nucleus > [noun] > field of energy > magnetic resonance > absorption of particle
resonance absorption1906
resonance capture1933
1906 London, Edinb., & Dublin Philos. Mag. 6th Ser. 11 70 The region of resonance-absorption..covers nearly the whole visible spectrum.
1961 G. R. Choppin Exper. Nucl. Chem. viii. 114 In indium a resonance absorption occurs for neutrons with a kinetic energy of 1·44 ev.
2005 A. Heilmann in L. Nicolais & G. Carotenuto Metal-Polymer Nanocomposites vi. 188 If the particle size and shape change due to thermal annealing, changes of the plasma resonance absorption are expected.
resonance capture n. (a) Nuclear Physics the absorption by an atomic nucleus of a particle having one of certain well-defined values of energy; (b) Astronomy the capture of one celestial object by another as a result of the two of them reaching a state of resonance (sense 4c).
ΘΚΠ
the world > matter > physics > atomic nucleus > [noun] > field of energy > magnetic resonance > absorption of particle
resonance absorption1906
resonance capture1933
1933 Proc. Royal Soc. A. 141 207 If these disintegrations also result from resonance capture, central collisions are presumed to be responsible.
1964 M. Gowing Brit. & Atomic Energy 1939–45 i. 40 Various other ways of reducing the capture of neutrons by resonance capture..were considered.
1987 Icarus 70 319 Orbital periods of the planets are explained in terms of past two-body resonance capture of planetesimals in the solar nebula.
2001 J. Räisänen in Z. B. Alfassi Non-destructive Elemental Anal. viii. 277 In resonance capture reactions the projectile is captured by the target nucleus to form a nucleus..in an excited state.
2005 J. A. Fernández Comets viii. 224 This population was subsequently pushed outwards through resonance capture by the proto-Neptune.
resonance cavity n. = resonator n. 1; cf. resonant cavity n. at resonant adj. and n. Compounds.
ΘΚΠ
the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > other amplifying devices
micracoustic1684
microphone1684
polyacoustic1684
resonator1864
resonance cavity1867
resonance chamber1870
aerophone1878
megaphone1878
sphygmophone1879
phonendoscope1895
auxetophone1904
stentorphone1921
1867 A. M. Bell Visible Speech: Sci. Universal Alphabetics 71 The resonance-cavity is enlarged behind the configurative aperture.
1920 G. H. Wilson Man. Dental Prosthetics (ed. 4) xv. 532 Fig. 400 shows also the large nasopharynx, another resonance cavity.
1998 Britannica Online (Version 98.2) The player holds the frame to his mouth, which forms a resonance cavity, and plucks the instrument's tongue.
resonance chamber n. = resonator n. 1.
ΘΚΠ
the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > other amplifying devices
micracoustic1684
microphone1684
polyacoustic1684
resonator1864
resonance cavity1867
resonance chamber1870
aerophone1878
megaphone1878
sphygmophone1879
phonendoscope1895
auxetophone1904
stentorphone1921
1870 Proc. Amer. Philol. Assoc. 1869 20 The effective resonance-chamber does not extend forward of the boundary of the guttural compartment.
1962 A. Nisbett Technique Sound Studio iii. 59 The mouth, nose and throat cavities act as resonance chambers for sound coming from the vocal cords.
2000 N.Y. Times 10 Jan. e6/6 A series of room-size resonance chambers at the sides of the stage can be either closed or left open.
resonance energy n. (a) a value of the energy of a system at which the system undergoes resonance; (b) Chemistry (in a molecule exhibiting resonance) the stability gain represented by the difference in energy between the resonance hybrid and the most stable of the canonical forms.
ΘΚΠ
the world > matter > chemistry > mesomerism > [noun] > attributed to
resonance energy1915
the world > matter > physics > atomic physics > particle physics > [noun] > resonance > energy value inducing
resonance energy1915
1915 W. M. Bayliss Princ. Gen. Physiol. xix. 552 Resonance energy thus tends to decrease, either by change of rate of vibration of the resonator, or by increase of damping.
1931 Jrnl. Amer. Chem. Soc. 53 1368 The energy of the bond is largely the resonance or interchange energy of two electrons.
1995 School Sci. Rev. June 68/1 This suggests greater aromatic character than anthracene and this is confirmed by the larger resonance energy [of phenanthrene].
resonance fluorescence n. Physics fluorescence in which the light emitted has the same wavelength as the light exciting the emission.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > of same wavelength
resonance radiation1905
resonance fluorescence1925
1925 Sci. Abstr. A. 28 121 In the case of resonance fluorescence the re-emitted line possesses a greater Doppler width than the incident line.
1977 I. M. Campbell Energy & Atmosphere viii. 260 (caption) Schematic diagram of apparatus for the resonance fluorescence detection of hydroxyl radicals in air.
2007 D. Meschede Optics, Light & Lasers (ed. 2) xii. 454 Resonance fluorescence has played a central role in the history of quantum optics.
resonance frequency n. Physics = resonant frequency n. at resonant adj. and n. Compounds.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > frequency > specific frequencies
high frequency1842
natural frequency1873
resonant frequency1897
resonance frequency1898
low frequency1928
modulation frequency1930
quench frequency1938
gyrofrequency1941
Nyquist frequency1963
1898 Jrnl. Inst. Electr. Engineers 27 823 Let L be expressed in secohms or henries; let S be expressed in microfarads; then the resonance frequency of the circuit is 160/ √(LS).
1974 Encycl. Brit. Macropædia XIX. 101/2 Wind supplied the power causing the bridge to vibrate at one of its torsional resonance frequencies without sufficient damping.
2000 J. Sundberg in J. Potter Cambr. Compan. Singing xix. 241 The resonance frequencies of the vocal tract depend on its length and shape.
resonance hybrid n. Chemistry a molecular structure regarded as the result of resonance (sense 5b) between two or more different structures.
ΘΚΠ
the world > matter > chemistry > mesomerism > [noun] > mesomeric combination of a number of forms
resonance hybrid1936
1936 Jrnl. Chem. Soc. i. 537 The properties implied by (II) are exactly those of a resonance hybrid of the structures (I) and (III).
1964 N. G. Clark Mod. Org. Chem. xxv. 525 The true structure of benzene is..a resonance hybrid, to which the two Kekulé formulae..contribute equally.
2006 A. S. Tarendash Let's review Chem. (ed. 4) ix. 220 In the case of the NO2 ion, the resonance hybrid is viewed as a structure in which the double bond is actually extended across both oxygen atoms.
resonance level n. Physics a level at which resonance occurs; spec. an energy level of an atomic nucleus corresponding to a state of resonance (sense 5a).
ΚΠ
1911 C. E. Linebarger Lab. Man. Physics xxxiv. 88 Levels of water giving resonance throughout the entire length of the jar... Distance between the 1st and 2d resonance levels.
1923 Proc. Royal Soc. A. 103 209 A collision..which would not have given to the electron energy sufficient to bring it from the normal level to the resonance level.
2001 M. A. Corey God Hypothesis (2007) viii. 105 For Hoyle, this meticulous fine-tuning of nuclear resonance levels is direct evidence of a kind of ‘put-up job’ in the universe.
resonance particle n. Particle Physics = sense 5d.
ΚΠ
1960 Soviet Physics Techn. Physics 5 256 The case of these resonance particles is analogous to the similar situations encountered in the cases of smooth and crimped toruses.
2003 W. B. Rolnick Remnants of Fall xix. 229 Its three different charge states, ρ+, ρ0, and ρ−, are three of the particles of a whole..octet of resonance particles.
resonance radiation n. Physics radiation emitted in resonance fluorescence; (also) the phenomenon of resonance fluorescence.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > of same wavelength
resonance radiation1905
resonance fluorescence1925
1905 R. W. Wood in London, Edinb. & Dublin Philos. Mag. 10 514 Repeated efforts have been made..to detect a lateral emission of yellow light by sodium vapour when in the act of absorbing sodium light... This seems to be the first case found of the phenomenon, which it may perhaps be well to style resonance radiation, to distinguish it from fluorescence.
1963 R. W. Ditchburn Light (ed. 2) xvii. 661 Sodium absorbs and re-emits as resonance radiation the two well-known yellow lines at wavelengths 5890 Å. and 5896 Å.
2000 N. Taylor Laser ix. 56 This emission of resonance radiation takes place in an electrical discharge tube, like a neon sign.
resonance Raman n. Physics attributive designating a spectroscopic technique in which a Raman spectrum is excited by light having a frequency equal to that of an allowed electronic transition of the scattering molecules, leading to enhanced vibrations of parts of the molecule involved in the transition; relating to or involving this technique; (also, not attributive) resonance Raman spectroscopy.
ΘΚΠ
the world > matter > physics > atomic physics > decomposition of light, spectrum > study of spectra > types of spectrometry or spectroscopy > [noun] > Raman spectrometry or spectroscopy > feature of > spectrum produced by
Raman spectrum1929
resonance Raman1960
1960 L. Ya. Karpov tr. P. P. Shorygin & L. L. Krushinskii in Soviet Physics-Doklady 5 793 The possibility of observing resonance Raman spectra is limited to a considerable degree by the loss of light due to absorption.
1983 G. Britton Biochem. Nat. Pigments i. 18 In work with pigments the technique used is resonance Raman spectroscopy.
1997 New Scientist 19 Apr. 70/2 (advt.) Applications are invited..to work on various aspects of the new very sensitive technique of surface enhanced resonance Raman scattering.
2005 J. W. Robinson et al. Undergraduate Instrumental Anal. (ed. 6) iv. 301 This makes resonance Raman a very selective probe for specific chromophores.
resonance scattering n. Physics elastic scattering of a particle by an atomic nucleus at an energy of the incident particle for which the scattering cross-section is large compared with that for adjacent values of the energy; also called resonant scattering; cf. potential scattering n. at potential adj. and n. Compounds 2.
ΘΚΠ
the world > matter > physics > atomic physics > particle physics > action of dispersing particles > [noun] > elastic scattering
resonance scattering1922
Rutherford scattering1922
elastic scattering1933
potential scattering1937
resonant scattering1948
1922 Physical Rev. 20 293 Lamb gives a very general law of resonance scattering.
1978 Nature 26 Oct. 730/1 Resonance scattering of light from a beam of free atoms is an ideal technique for making precise absolute measurements of the shift in wavelength of the light relative to the reference wavelength of the beam atoms.
2004 K. Nakamura & T. Harayama Quantum Chaos & Quantum Dots i. 4 The sensitive dependence of the resistance on magnetic field implies the resonance scattering is a quantum effect.
resonance stabilization n. Chemistry the stabilization of a molecular structure by resonance (sense 5b); the extent of this (= resonance energy n. (b)).
ΘΚΠ
the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to named chemical reactions or processes > of or relating to resonance of any kind
resonating1845
resonance stabilization1937
resonant1944
1937 Jrnl. Physical Chem. 41 181 In other conjugated double bond compounds..the resonance stabilization energy has also invariably been found smaller than predicted by Pauling.
1939 L. Pauling Nature Chem. Bond i. 10 Because the resonating system does not have a structure intermediate between those involved in the resonance, but..a structure which is further changed by the resonance stabilization, I prefer not to use the word ‘mesomerism’..for the resonance phenomenon.
1978 K. Yates Hückel Molecular Orbital Theory iii. 118 In order to evaluate the resonance stabilization of benzene, as represented by the formulation (XI), a comparison should be made with cyclohexatrienes possessing the benzene geometry.
1992 J. March Adv. Inorg. Chem. (ed. 4) ii. 55 The stability of these [cyclobutadiene] compounds is generally attributed to the resonance shown, a type of resonance stabilization called the push–pull or captodative effect.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online June 2022).
<
n.a1460