Associations to the word «Hypersonic»

Wiktionary

HYPERSONIC, adjective. (of a speed) (aviation) equal to, or greater than, or capable of achieving, five times the speed of sound.
HYPERSONIC, adjective. (of a speed) (aeronautics) far enough above the speed of sound as to cause significant differences in behaviour due to chemical reactions or disassociation of the air.

Wise words

Words are cheap. The biggest thing you can say is 'elephant'.
Charlie Chaplin