Mach(redirected from Machen)
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Machalso mach (mäk)
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.
(Units) short for Mach number
(Biography) Ernst (ɛrnst). 1838–1916, Austrian physicist and philosopher. He devised the system of speed measurement using the Mach number. He also founded logical positivism, asserting that the validity of a scientific law is proved only after empirical testing
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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]
Ernst, 1838–1916, Austrian physicist.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Mach- The scale measuring the speed of an object or fluid relative to the speed of sound is named for philosopher/physicist Ernst Mach (1838-1916), who researched thermodynamics; Mach is the ratio of the speed of something to the speed of sound in the surrounding medium.
See also related terms for measuring.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
Mach[mæk] N → mach m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
Mach[ˈmɑːk] n → Mach m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Mach[mæk] n (Aer) (also Mach number) → (numero di) mach m inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995