Dictionary
sound barrier
noun
Definition of SOUND BARRIER
: a sudden large increase in aerodynamic drag that occurs as the speed of an aircraft approaches the speed of sound
See sound barrier defined for English-language learners
See sound barrier defined for kids
ADVERTISEMENT
First Known Use of SOUND BARRIER
1939
Rhymes with SOUND BARRIER
Learn More About SOUND BARRIER
Browse
Next Word in the Dictionary: sound–bitePrevious Word in the Dictionary: sound–and–light showAll Words Near: sound barrier
ADVERTISEMENT
Seen & Heard
What made you want to look up sound barrier? Please tell us where you read or heard it (including the quote, if possible).