infrasonic

adjective

in·​fra·​son·​ic ˌin-frə-ˈsä-nik How to pronounce infrasonic (audio)
-(ˌ)frä-
1
: having or relating to a frequency below the audibility range of the human ear
2
: utilizing or produced by infrasonic waves or vibrations

Examples of infrasonic in a Sentence

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.
The live demonstration will feature Trinnov's flagship AltitudeCI processor driving Ascendo's immersive speaker system, including six subwoofers for WaveForming and an infra-sub for infrasonic frequencies. — John Archer, Forbes.com, 25 July 2026 Cosmofonia explores the inaudible sounds and voices, including infrasonic vibrations, seismic noises, codes between different species, and acoustic traces of ecological collapse and survival. — Georg Szalai, HollywoodReporter, 19 Mar. 2026 The brown note, sometimes called the brown frequency, is an infrasonic noise frequency that has a particular effect. — Sara Novak, Discover Magazine, 8 May 2024 This immersive sonic room-size installation, boasting an infrasonic sound system consisting of a sub-bass speaker, LED unit, and sensors, is a techno-poetic reflection on our relationship to land, deep time, and planetary interconnection. — Emily Watlington, ARTnews.com, 3 Sep. 2019

Word History

First Known Use

1927, in the meaning defined at sense 1

Time Traveler
The first known use of infrasonic was in 1927

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Cite this Entry

“Infrasonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infrasonic. Accessed 9 Oct. 2026.

Medical Definition

infrasonic

adjective
1
: having or relating to a frequency below the audibility range of the human ear
2
: utilizing or produced by infrasonic waves or vibrations
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