mach
abbreviationMach
noun\ ˈmäk 
\
\Definition of Mach (Entry 2 of 3)
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
Mach
biographical name\ ˈmäḵ , ˈmäk \
, ˈmäk \Definition of Mach (Entry 3 of 3)
Ernst 1838–1916 Austrian physicist and philosopher
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More Definitions for mach
Mach
nounEnglish Language Learners Definition of Mach
technical —used to indicate the high speed of something (such as an airplane) by comparing it to the speed of sound
See the full definition for Mach in the English Language Learners Dictionary
Mach
noun\ ˈmäk \
\Medical Definition of Mach
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
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Time Traveler for mach
The first known use of mach was in 1946
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