A Resonance

1. The quality of being resonant.
2. A resonant sound, echo, or reverberation, such as that produced by blowing over the top of a bottle.
3. (medicine) The sound produced by a hollowbody part such as the chest cavity upon auscultation, especially that produced while the patient is speaking.
4. (figuratively) Something that evokes an association, or a strong emotion.
5. (physics) The increase in the amplitude of an oscillation of a system under the influence of a periodic force whose frequency is close to that of the system's natural frequency.
6. (nuclear physics) A short-lived subatomic particle or state of atomic excitation that results from the collision of atomic particles.
7. An increase in the strength or duration of a musical tone produced by sympathetic vibration.
8. (chemistry) The property of a compoundthat can be visualized as having two structures differing only in the distribution of electrons.
9. (astronomy) A influence of the gravitationalforces of one orbiting object on the orbit of another, causing periodic perturbations.
10. (electronics) The condition where the inductive and capacitive reactances have equal magnitude.