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单词 oscillatory
释义

oscillatoryadj.

Brit. /əˈsɪlət(ə)ri/, /ɒˈsɪlət(ə)ri/, /ˈɒsɪlət(ə)ri/, U.S. /əˈsɪləˌtɔri/
Origin: Formed within English, by derivation. Etymons: oscillate v., -ory suffix2.
Etymology: < oscillate v. + -ory suffix2. Compare post-classical Latin oscillatorius (1673; 1686 in a British source), French oscillatoire (1729).
1. Characterized by oscillation to and fro; of or relating to oscillation.
ΘΚΠ
the world > movement > motion in specific manner > alternating or reciprocating motion > oscillation > [adjective]
oscillatory1670
oscillating1743
oscillant1857
1670 Philos. Trans. 1669 (Royal Soc.) 4 1104 For the Moons mean Anomaly being about 7 Sign. 11 deg. we may the better judge by the Observation, Whether the Æquations of her orbite be Oscillatory, or not.
1738 T. Gray Let. in Corr. (1971) I. 65 My motions at present..are much like those of a pendulum, or (Dr. Longically speaking) oscillatory, I swing from Chapell or Hall home, & from home to Chapell or Hall.
1757 E. Burke Philos. Enq. Sublime & Beautiful iv. §23. 158 A gentle oscillatory motion, a rising and falling.
1833 J. F. W. Herschel Astronomy xi. 367 The perihelia describe considerable angles by an oscillatory motion to and fro.
1879 R. A. Proctor Pleasant Ways Sci. ii. 29 Like other movements tending to restore equilibrium, the atmospheric motions are oscillatory.
1955 Sci. Amer. Sept. 132/3 C. L. Pekeris in England showed that the oscillatory motion of the air above a height of about 20 miles should be in the direction opposite to that at ground level.
1984 A. C. Duxbury & A. Duxbury Introd. World's Oceans xi. 354 Processes that govern the degree of vertical mixing and stratification are the strength of the oscillatory tidal currents.
2. Electronics. Of a current: = oscillating adj. 2. Of a circuit or device: capable of sustaining oscillations (oscillation n. 3).
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [adjective] > oscillating
oscillatory1853
oscillating1888
the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [adjective] > oscillating
oscillating1920
oscillatory1948
1853 London, Edinb., & Dublin Philos. Mag. 4th Ser. 5 399 It is probable that many remarkable phenomena which have been observed in connexion with electrical discharges are due to the oscillatory character which we have found to be possessed when the condition..C<4A/k2 is fulfilled.
1878 Jrnl. Soc. Telegr. Engineers 7 319 The discharge is oscillatory if R is less than 40,000 ohms, and continuous if it is greater than that amount.
1905 Electrician Feb. 614/1 The effect on the rate of radiation, of varying the length of that portion of the air wire included in the coupled oscillatory circuit.
1948 M. Slurzberg & W. Osterheld Essent. Radio x. 449 The essential parts of a vacuum-tube oscillator are (1) the oscillatory or tank circuit,..(2) a vacuum-tube amplifier, (3) a feedback circuit.
1973 J. Yarwood Electr. & Magn. xi. 428 The oscillatory current obtained by the discharge of a capacitor through an inductance decays in amplitude with a logarithmic decrement of RT/2L.
1989 K. Barratt Logic & Design (BNC) An oscillatory circuit is based on the reciprocal charging and discharging of a condensor [sic] through an inductance.
3. Mathematics. = oscillating adj. 3.
ΘΚΠ
the world > relative properties > number > mathematical number or quantity > numerical arrangement > [adjective] > of sets > of sequences > series
intermediate1648
converging1728
convergent1816
zeroth1850
tactical1864
oscillatory1893
termwise1903
sociable1964
1893 O. Heaviside in Proc. Royal Soc. 52 526 We might expect this to be a form of the oscillatory function J0(x). But it is not. It represents the oscillatory companion to J0(x), say G0(x).
1908 T. J. I'A. Bromwich Introd. Theory Infinite Series i. 16 Since an oscillatory sequence always contains at least two convergent sub-sequences (those giving the extreme limits),..an oscillatory series can always be made to converge by grouping the terms in brackets.
1968 H. M. Lieberstein Course in Numerical Anal. (1969) vii. 126 The error term is oscillatory and unbounded... In computation with small h one will see for small n very good answers being produced, but eventually as n..becomes larger, a ‘flowering’ will take place as the oscillatory error term takes over.
1990 IMA Jrnl. Numerical Anal. 10 490 The general solution to (1.4) is oscillatory, and this has led to several definitions of stability of a numerical scheme when applied to the test problem.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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adj.1670
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