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M-

1.
U.S. Military. (used to designate the production model of military equipment, as the M-1 rifle.)

m-

1.
2.
(referring especially to the use of wireless electronic devices) mobile:
m-commerce; m-business.

M'-

1.
variant of Mac-.

Mac-

1.
a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald.
Also, Mc-, Mc-, M'-.
Origin of Mac-
< Irish, Scots Gaelic mac son, Old Irish macc; akin to Welsh, Cornish mab

Mc-2

1.
variant of Mac-.
Also, Mc-.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for M-

m-

prefix
1.
short for meta- (sense 4)

m-

prefix
1.
indicating the use of mobile-communications technology: m-banking

M'-

prefix
1.
a variant of Mac-

Mac-

prefix
1.
(in surnames of Scottish or Irish Gaelic origin) son of: MacDonald, MacNeice
Word Origin
from Goidelic mac son of; compare Welsh mab, Cornish mab

Mc-

prefix
1.
a variant of Mac-
Usage note
For names beginning with this prefix, see under Mac-
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 M-

Mac-

common element in Scottish and Irish names, from Old Celtic *makko-s "son." Cognate root *makwos "son" produced Old Welsh map, Welsh mab, ap "son;" also probably cognate with Old English mago "son, attendant, servant," Old Norse mögr "son," Gothic magus "boy, servant," Old English mægð "maid" (see maiden).

Online Etymology Dictionary, © 2010 Douglas Harper
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M- in Medicine

m- abbr. often m-
meta-

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Difficulty index for M-

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