SOUND BARRIER

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does sound barrier mean? 

• SOUND BARRIER (noun)
  The noun SOUND BARRIER has 1 sense:

1. the increase in aerodynamic drag as an airplane approaches the speed of sound

  Familiarity information: SOUND BARRIER used as a noun is very rare.

 Dictionary entry details 

• SOUND BARRIER (noun)

Sense 1

Meaning:

The increase in aerodynamic drag as an airplane approaches the speed of sound

Classified under:

Nouns denoting natural phenomena

Synonyms:

sonic barrier; sound barrier

Hypernyms ("sound barrier" is a kind of...):

drag; retarding force (the phenomenon of resistance to motion through a fluid)