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oscillator

American  
[os-uh-ley-ter] / ˈɒs əˌleɪ tər /

noun

  1. Electronics. a circuit that produces an alternating output current of a certain frequency determined by the characteristics of the circuit components.

  2. a device or machine producing oscillations.

  3. a person or thing that oscillates.


oscillator British  
/ ˈɒsɪˌleɪtə /

noun

  1. a circuit or instrument for producing an alternating current or voltage of a required frequency

  2. any instrument for producing oscillations

  3. a person or thing that oscillates

"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 oscillator

1825–35; < New Latin, equivalent to Latin oscillā ( re ) to swing ( see oscillate) + -tor -tor

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:

Its internal state behaves like a qubit, while its motion acts as a quantum harmonic oscillator that can occupy many different motional states.

From Science Daily Jun. 15, 2026

The Mamyshev oscillator, however, is far less susceptible to these problems, making it particularly well suited for integrated photonic devices.

From Science Daily Jun. 4, 2026

We use multiple indicators but rely most on the stochastic oscillator for timely indications of important highs and lows.

From Barron's Apr. 10, 2026

The above market internals are generally bullish, although the breadth oscillator might be slipping.

From MarketWatch Jan. 29, 2026

In under a minute, he has built an oscillator to match the schematic.

From "All the Light We Cannot See" by Anthony Doerr

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