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M

1.
mach.
2.
Music. major.
3.
male.
4.
5.
6.
7.
8.
9.
modal auxiliary.
10.
11.
Economics. monetary aggregate: issued periodically by the Federal Reserve Board as various measures of money supply ((M-1, M-1A, M-2) etc.).
Compare L.
12.
British. motorway (used with a road number to designate a major highway):
the M1.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for m1a

m

/ɛm/
noun (pl) m's, M's, Ms
1.
the 13th letter and tenth consonant of the modern English alphabet
2.
a speech sound represented by this letter, usually a bilabial nasal, as in mat

m

symbol
1.
metre(s)
2.
mile(s)
3.
milli-
4.
minute(s)

M

symbol
1.
mach
2.
medium (size)
3.
mega-
4.
(currency) mark(s)
5.
million
6.
(astronomy) Messier catalogue; a catalogue published in 1784, in which 103 nebulae and clusters are listed using a numerical system: M13 is the globular cluster in Hercules
7.
Middle
8.
(physics) modulus
9.
(in Britain) motorway: the M1 runs from London to Leeds
10.
(in Australia)
  1. mature audience (used to describe a category of film certified as suitable for viewing by anyone over the age of 15)
  2. (as modifier): an M film
11.
(logic) the middle term of a syllogism
12.
(physics) mutual inductance
13.
(chem) molar
14.
(Roman numeral) 1000 See Roman numerals
abbreviation
15.
Malta (international car registration)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for m1a

M

13th letter, from Greek mu, from Semitic mem. The Roman symbol for 1,000; sometimes used in this sense in English 15c.-16c.; but in late 20c. newspaper headlines it stands for million. As a thickness of type, from 1680s.

Online Etymology Dictionary, © 2010 Douglas Harper
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m1a in Medicine

m abbr.

  1. mass

  2. meter

M 2
abbr.

  1. molar

  2. molarity

  3. morgan

  4. myopia

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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m1a in Science
m  
Abbreviation of mass, meter
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for m1a

M

noun
  1. Morphine: You've got to get M to get that tingle-tingle (1912+ Narcotics)
  2. Marijuana (1960+ Narcotics)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Related Abbreviations for m1a

m

  1. masculine
  2. mass
  3. meter
  4. minute
  5. modulus

M

  1. em
  2. Maccabees
  3. Mach number
  4. male
  5. Malta (international vehicle ID)
  6. married (as in personal ads)
  7. medium
  8. megabyte
  9. mellow
  10. metal
  11. middle term
  12. million
  13. mint
  14. molar
  15. molarity
  16. moment
  17. Monday
  18. month
  19. more (shortwave transmission)
  20. [heart] murmur
  21. mutual inductance
  22. 1000
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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