Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Mach angle

noun
\ ˈmäk-, ˈmȧk-\

Definition of Mach angle

: half of the vertex angle of a Mach cone whose sine is the ratio of the speed of sound to the speed of a moving body

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for Mach angle

after Ernst Mach †1916 Austrian physicist and philosopher

Keep scrolling for more

Learn More about Mach angle

Share Mach angle

Dictionary Entries near Mach angle

Machairodus

machan

machancha

Mach angle

Mach cone

mâche

macheer

Statistics for Mach angle

Look-up Popularity

Comments on Mach angle

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

Show Comments  Hide Comments 

WORD OF THE DAY

gargantuan

tremendous in size, volume, or degree

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games