subsonic
[ suhb-son-ik ]
/ sʌbˈsɒn ɪk /
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adjective
noting or pertaining to a speed less than that of sound in air at the same height above sea level.
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Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.
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OTHER WORDS FROM subsonic
sub·son·i·cal·ly, adverbWords nearby subsonic
subsoil, subsoiler, subsoil plow, subsolar, subsong, subsonic, subspace, subspecialty, subspecies, subspecific, subspinale
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for subsonic
British Dictionary definitions for subsonic
subsonic
/ (sʌbˈsɒnɪk) /
adjective
being, having, or travelling at a velocity below that of sounda subsonic aircraft
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
Scientific definitions for subsonic
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.
The American Heritage® Science Dictionary
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