subsonic
[suhb-son-ik]
- noting or pertaining to a speed less than that of sound in air at the same height above sea level.
- infrasonic.
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Origin of subsonic
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for subsonic
Historical Examples of subsonic
And its booming notes descended to subsonic throbbings that gripped and wrung the nerves to anguish.
The Record of CurrupiraRobert Abernathy
Most of their conversation is carried on in tones of subsonic frequency, so your ears cannot hear it.
The Asses of BalaamGordon Randall Garrett
subsonic
- being, having, or travelling at a velocity below that of sounda subsonic aircraft
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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
subsonic
[sŭb-sŏn′ĭk]
- Having a speed less than that of sound in a designated medium, usually air; having a velocity less than Mach 1. Compare hypersonic supersonic transonic.
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The American Heritage® Science Dictionary
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