resonance
/ˈrɛz(ə)nəns
/noun [mass noun]
1The quality in a sound of being deep, full, and reverberating: the resonance of his voice...
- I envy guys who are comfortable in their own voices and who speak with deep resonance.
- From the first few moments, however, the performance took on the feeling of a ceremony with the deep resonance of the cello in the sanctuary and the player's eloquent artistry.
- Fifty-five-gallon oil drums are cut to various depths that determine pitch and resonance of high tenors to deep bass.
1.1The power to evoke enduring images, memories, and emotions: the concepts lose their emotional resonance...
- Harry's personal conflicts become the central focus, and the emotional resonance is sufficient to power the film.
- Instead of the usual light-hearted romp, this performance found power and emotional resonance in the music.
- They are completely unaware of who this monument celebrates or what its significance is; yet the image's resonance is not lost on its audience.
2 Physics The reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighbouring object.A special kind of sound reinforcement, called assisted resonance, is used in some halls to increase the reverberation time within certain frequency bands....
- The researcher believes giraffes may use Helmholtz resonance, causing the air in their long windpipes to vibrate at a low pitch.
- A bass trap is any device that reduces the strength of a low frequency ‘standing wave’ or resonance.
3The condition in which an electric circuit or device produces the largest possible response to an applied oscillating signal.The piezo transformer is operated as close to resonance as possible, contributing to greater circuit efficiency....
- On the other hand, if the electrical resonance is involved in the generation of oscillations, disabling it should eliminate the spontaneous bundle activity.
- In addition, the signal overlap for each resonance line can be examined in the spatially resolved spectra.
3.1 Mechanics The condition in which an object or system is subjected to an oscillating force having a frequency close to its own natural frequency.He found that, at a certain speed, the resonance - or natural frequency - of the machine was the root cause of the problem....
- Selective resonance at these eigentone frequencies will inevitably colour the sound, especially in small rectangular rooms where the resonant frequencies are high enough to fall within the musical range.
- Leaving aside the microtonal differences resulting from natural resonance I have constructed 11 modes based on the interaction of 2 harmonic series.
4 Astronomy The occurrence of a simple ratio between the periods of revolution of two bodies about a single primary.Second, Pluto is in a 2: 3 orbit-orbit resonance with Neptune....
- In this resonance, Venus would make, on average, four axial rotations as seen by an Earth observer between successive close approaches of the two planets.
- The mechanism involves a gravitational resonance between the Moon and accretion-disk material, which can increase orbital inclinations up to approx 15°.
5 Chemistry The property of having a molecular structure which cannot adequately be represented by a single structural formula but is a composite of two or more structures of higher energy.An example of a molecule which demonstrates resonance is ozone, O 3....
- Because a carboxylate ion has low energy due to resonance stabilization, its formation via dissociation in aqueous solution is somewhat favorable.
- This creates a line of p orbitals down the length of the molecule, allowing resonance stabilization of the pi bonds.
6 [count noun] Physics A short-lived subatomic particle that is an excited state of a more stable particle.A statistical model for decay and formation of heavy hadronic resonances is formulated....
- The ρ meson is a wide resonance (Γρ = 150 MeV) and will decay primarily inside the nucleus, making it ideal for observing medium effects.
- The evidence for the new particle is a resonance observed when studying the invariant mass combinations of D*- anti-charmed mesons (dcbar) with protons (uud) and the anti-matter equivalent, D*+ mesons with anti-protons.
Origin
Late Middle English: from Old French, from Latin resonantia 'echo', from resonare 'resound' (see resonant).