: 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
Michael Verdon, Robb Report, 23 Apr. 2025
The rocket reaches a velocity of over 2,200 mph, or close to Mach 3, on the way up, plunges back through the atmosphere like a cannonball after a few minutes of weightlessness, and depends on a parachute to bring the passengers home safely—not the kind of chances every traveler would want to take.
—Jeffrey Kluger, Time, 13 Apr. 2025
Manufactured by Australian startup Radium Performance, the Mach One delivers 8,000 watts via two rear-wheel motors which take it from 0 to 30 mph (48 km/h) in a claimed three seconds.
—Ben Coxworth, New Atlas, 7 Apr. 2025
Image Image In Huntington Beach, Calif., Mach Industries, which has a contract with the Army, makes weapons in a 150,000-square-foot warehouse.
—Patrick Sisson, New York Times, 28 Mar. 2025
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Noun
The flight lasted 14 hours and 38 minutes at an average cruise speed of Mach 0.87.
—Michael Verdon, Robb Report, 23 Apr. 2025
The rocket reaches a velocity of over 2,200 mph, or close to Mach 3, on the way up, plunges back through the atmosphere like a cannonball after a few minutes of weightlessness, and depends on a parachute to bring the passengers home safely—not the kind of chances every traveler would want to take.
—Jeffrey Kluger, Time, 13 Apr. 2025
Manufactured by Australian startup Radium Performance, the Mach One delivers 8,000 watts via two rear-wheel motors which take it from 0 to 30 mph (48 km/h) in a claimed three seconds.
—Ben Coxworth, New Atlas, 7 Apr. 2025
Image Image In Huntington Beach, Calif., Mach Industries, which has a contract with the Army, makes weapons in a 150,000-square-foot warehouse.
—Patrick Sisson, New York Times, 28 Mar. 2025
See All Example Sentences for mach
Cite this Entry
“Mach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mach. Accessed 3 May. 2025.
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Mach
nounMedical Definition
Mach
noun
: a usually high speed expressed by a Mach number
an airplane flying at Mach 2
Biographical Definition
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