| / English Dictionary |
SOUND BARRIER
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The increase in aerodynamic drag as an airplane approaches the speed of sound
Synonyms:
sonic barrier; sound barrier
Classified under:
Nouns denoting natural phenomena
Hypernyms ("sound barrier" is a kind of...):
drag; retarding force (the phenomenon of resistance to motion through a fluid)
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