From Old French resonance (French résonance), from , from resonō ("I resound").

• (British) IPA: /ˈɹɛzənəns/

resonance

1. (uncountable) The quality of being resonant.

   Synonyms: resound

   • 1897, Bram Stoker, Dracula, New York, N.Y.: Modern Library, →OCLC ↗:

     The leiter-wagons contained great, square boxes, with handles of thick rope; these were evidently empty by the ease with which the Slovaks handled them, and by their resonance as they were roughly moved.

2. (countable) A resonant sound, echo or reverberation, such as that produced by blowing over the top of a bottle.
   • 1912, Edith Wharton, The Reef‎, New York, N.Y.: D[aniel] Appleton and Company:

     He passed on, and the lights and cries of the station dropped away, merged in a wider haze and a hollower resonance, as the train gathered itself up with a long shake and rolled out again into the darkness.

3. (medicine) The sound produced by a hollow body 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; something that strikes a chord.

   emotional resonance

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 compound that can be visualized as having two structures differing only in the distribution of electrons.

   Synonyms: mesomerism

9. (astronomy) An influence of the gravitational forces 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.
11. (sociology) A quality of human relationship with the world.

• resonate
• resonator
• resonant

• French: résonance
• German: Resonanz
• Italian: risonanza
• Portuguese: ressonância
• Russian: резона́нс
• Spanish: resonancia

• Portuguese: ressonância

• German: Mesomerie