mach
[ ˈmäk]
[ˈmäk]
: a usually high speed expressed by a Mach number
//an airplane flying at Mach 2
[ˈmäḵ]
Ernst 1838–1916 Austrian physicist and philosopher
First Known Use of mach
Noun
1946, in the meaning defined above
History and Etymology for mach
Dictionary Entries near mach