Search Result for "mach number":
Wordnet 3.0

NOUN (1)

1. the ratio of the speed of a moving body to the speed of sound;


The Collaborative International Dictionary of English v.0.48:

mach number \mach number\ n. (aeronautics) The ratio of the speed of a moving body to the speed of sound. [WordNet 1.5]
WordNet (r) 3.0 (2006):

Mach number n 1: the ratio of the speed of a moving body to the speed of sound