oscillation

noun

os·​cil·​la·​tion ˌä-sə-ˈlā-shən How to pronounce oscillation (audio)
1
: the action or state of oscillating
stays can be effectively used to prevent oscillations in new bridgesD. B. Steinman
2
: variation, fluctuation
famines due to excessive storminess and violent oscillations of rain and drought, heat and coldEllsworth Huntington
3
: a flow of electricity changing periodically from a maximum to a minimum
especially : a flow periodically changing direction
4
: a single swing (as of an oscillating body) from one extreme limit to the other
Each oscillation of the pendulum represents one second.
oscillational adjective

Examples of oscillation in a Sentence

the continued oscillation of the fan There has been oscillation between optimism and pessimism among voters.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This escapement delivers two direct impulses to the balance with each oscillation, ensuring efficiency and a 72-hour power reserve. Anthony Demarco, Forbes.com, 1 Apr. 2025 For example, complex analysis is used to manipulate wavelets, or small oscillations in data. William Ross, The Conversation, 10 Mar. 2025 Visit settings to control the child lock and oscillation, change the temperature unit, and mute the control panel beeps. PCMAG, 24 Feb. 2025 The graceful oscillations of manta fins propagate waves that move outward from the ray’s body and create vortices that spiral, pushing water backward and producing forward thrust. Elizabeth Rayne, Ars Technica, 31 Dec. 2024 See All Example Sentences for oscillation

Word History

First Known Use

1658, in the meaning defined at sense 1

Time Traveler
The first known use of oscillation was in 1658

Cite this Entry

“Oscillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oscillation. Accessed 8 Apr. 2025.

Kids Definition

oscillation

noun
os·​cil·​la·​tion ˌäs-ə-ˈlā-shən How to pronounce oscillation (audio)
1
: the action or state of oscillating : vibration
2
3
: a single swing (as of an oscillating body) from one extreme limit to the other

Medical Definition

oscillation

noun
os·​cil·​la·​tion ˌäs-ə-ˈlā-shən How to pronounce oscillation (audio)
1
: the action or state of oscillating
2
: a flow of electricity changing periodically from a maximum to a minimum
especially : a flow periodically changing direction

More from Merriam-Webster on oscillation

Last Updated: - Updated example sentences
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