sound barrier

RELATED WORDS :

POS

Noun Phrase

HYPHEN

sound bar=ri=er

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WORDNET DICTIONARY

Noun sound barrier has 1 sense

sound barrier(n = noun.phenomenon) sonic barrier - the increase in aerodynamic drag as an airplane approaches the speed of sound;

is a kind of drag, retarding force

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THESAURUS

sound barrier

Mach, Mach number, Mach one, Mach two, air speed, escape velocity, ground speed, knots, shock wave, sonic barrier, sonic boom, sonic speed, sonics, speed of sound, subsonic speed, subsonics, supersonic speed, supersonics, ultrasonics