sonic barrier
sonic barrier is a valid 13-letter word worth 16 points in Scrabble and 19 in Words With Friends.
the increase in aerodynamic drag as an airplane approaches the speed of sound
Anagrams
Anagrams of sonic barrier
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sonic barrier is a valid 13-letter word worth 16 points in Scrabble and 19 in Words With Friends.
the increase in aerodynamic drag as an airplane approaches the speed of sound