mach

1 of 2

abbreviation

Mach

2 of 2

noun

: a usually high speed expressed by a Mach number
an airplane flying at Mach 2

Examples of mach in a Sentence

Recent Examples on the Web
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Noun
The Pentagon said on Thursday that a common hypersonic All Up Round (AUR) missile, which can fly at Mach 17—equal to 12,940 miles per hour or 17 times the speed of sound, was fired from a U.S. Army's launcher at Cape Canaveral Space Force Station in Florida. Thomas G. Moukawsher, Newsweek, 17 Dec. 2024 The missile launch struck a military command center in Ukraine, Putin claimed, saying the missile could reach speeds of Mach 10, or more than 7,000 mph. IRBMs can reach targets up to 3,500 miles away. Brad Dress, The Hill, 11 Dec. 2024 Brandenburg completed the eighth and most recent flight of the XB-1 on Nov. 16, reaching an altitude of 25,000 feet and a speed of Mach 0.82. J. George Gorant, Robb Report, 5 Dec. 2024 Shop these Hoka Women's Mach 6 sneakers for $112 or the Hoka Men's Clifton 9 for $116. Amelia McBride, Travel + Leisure, 2 Dec. 2024 See all Example Sentences for mach 

Word History

Etymology

Noun

Mach number

First Known Use

Noun

1947, in the meaning defined above

Time Traveler
The first known use of mach was in 1947

Dictionary Entries Near mach

Cite this Entry

“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 22 Dec. 2024.

Kids Definition

Mach

noun

Medical Definition

Mach

noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2

Biographical Definition

Mach

biographical name

ˈmäḵ How to pronounce Mach (audio)
ˈmäk
Ernst 1838–1916 Austrian physicist and philosopher

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