Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

mach

abbreviation

Definition of mach



Other Mechanical Engineering Terms


Mach

play
noun \ˈmäk\

Definition of Mach

  1. :  a usually high speed expressed by a Mach number <an airplane flying at Mach 2>



Origin and Etymology of mach

Mach number


First Known Use: 1946


Mach

play
biographical name \ˈmäḵ, ˈmäk\

Definition of Mach

  1. Ernst 1838–1916 Austrian physicist & philos.




Medical Dictionary

Mach

play
noun \ˈmäk\

Medical Definition of Mach

  1. :  a usually high speed expressed by a Mach number <an airplane flying at Mach 2>



Biographical Note for mach

Mach

\ˈmäḵ\,

Ernst

(1838–1916), Austrian physicist and philosopher. Mach established the basic principles of scientific positivism. In the 1870s he made classic studies on the perception of bodily rotation. Mach was also a pioneer in the study of supersonic projectiles and jets. In 1887 he described in a paper on projectiles in flight the angle between the axis of the projectile and the envelope of the waves produced. This angle forms the basis for the Mach number.


Learn More about mach


Seen and Heard

What made you want to look up mach? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

different from the usual or normal

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

accommodate acommadate accomodate acommodate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ