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resonator

American  
[rez-uh-nay-ter] / ˈrɛz əˌneɪ tər /

noun

  1. anything that resonates.

  2. an appliance for increasing sound by resonance.

  3. an instrument for detecting the presence of a particular frequency by means of resonance.

  4. Electronics.

    1. a hollow enclosure cavity resonator made of conducting material of such dimensions that electromagnetic radiation of a certain frequency will resonate.

    2. any circuit having this frequency characteristic.


resonator British  
/ ˈrɛzəˌneɪtə /

noun

  1. any body or system that displays resonance, esp a tuned electrical circuit or a conducting cavity in which microwaves are generated by a resonant current

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of resonator

First recorded in 1865–70; resonate + -or 2


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"The Earth-ionosphere cavity acts as a natural resonator that amplifies electromagnetic waves right around the mass range we wanted to probe."

From Science Daily ● Sep. 6, 2026

One example is the ring resonator, a basic optical device used in both scientific research and data transmission.

From Science Daily ● Aug. 17, 2026

These included material losses, differences in resonator quality, backscattering, coupling fluctuations, phase errors in the loop couplers, and thermal crosstalk.

From Science Daily ● Jul. 22, 2026

Using this concept, the team designed and experimentally demonstrated a three dimensional singular dielectric resonator capable of confining light below the diffraction limit in all three spatial dimensions.

From Science Daily ● May 21, 2026

Apart from the lodestone resonator, the most important items were a pair of insect larvae, and their food.

From "The Amber Spyglass" by Philip Pullman

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