Mach number

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Mach number

also mach number  (mäk)
n. Abbr. M
The ratio of the speed of an object to the speed of sound in the surrounding medium. For example, an aircraft moving twice as fast as the speed of sound is said to be traveling at Mach 2.

[After Ernst Mach.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Mach number

n
(Units) (often not capital) the ratio of the speed of a body in a particular medium to the speed of sound in that medium. Mach number 1 corresponds to the speed of sound. Often shortened to: Mach
[C19: named after Ernst Mach]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

mach

or Mach

(mɑk)

n.
a number indicating the ratio of the speed of an object to the speed of sound in the medium through which the object is moving. Abbr.: M
[after E. Mach]

Mach

(mɑk, mɑx)

n.
Ernst, 1838–1916, Austrian physicist.

mach.

1. machine.
2. machinery.
3. machinist.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Mach number

(mäk)
The ratio of the speed of a body to the speed of sound in a particular medium. For example, an aircraft flying through air at twice the speed of sound has a Mach number of 2.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

mach number

The ratio of the velocity of a body to that of sound in the surrounding medium.
Dictionary of Military and Associated Terms. US Department of Defense 2005.

mach number

A unit of velocity. Mach 1 is the speed of sound; Mach 5 is described as hypersonic.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mach number - the ratio of the speed of a moving body to the speed of soundMach number - the ratio of the speed of a moving body to the speed of sound
ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
Machovo číslo
References in periodicals archive ?
However, I haven't been able to find ammunition for the .17 Mach 2 in several years.
Mach 2 Airshows has launched, bringing private airshows to corporate meetings and events nationwide, the company said.
Modern Russian anti-ship missiles, like Onyx, can reach up to Mach 2.6 (0.46 miles a second).
Figure 12 shows Mach number comparison plot for Wind tunnel experiments and CFD trials along the radial direction for a Mach 2.4 nozzle with the presence of MDT.
Coarse fishing awards include a MACH 2 three-tips feeder rod with a MACH 3 front-drag reel.
Hornady's .17 Mach 2, on a CCI Stinger case (circa 1977), measured .694 to the mouth and .975 to the tip of the 17-grain V-Max.
Reaching a speed of Mach 2, the supersonic craft glided effortlessly before a complex series of airbags and parachutes enabled it to land horizontally in a completely recoverable state, amid the cheers of a relieved testing team.
Two years later, Hornady introduced an even smaller round--the .17 Mach 2. Although the Mach 2 is basically a .22 Long Rifle necked down, the case is actually shorter to allow the same approximate overall length when loaded with the longer 17-grain V-Max bullets.
In September of 2004, having performed an evolving mission in a superb manner, MACH 1 headed home and was relieved by MACH 2, comprised again of mobilized Reservists, this time from NCHB 10 in Williamsburg, Va., under the command of LCDR Max Slusher.