[ em ]
/ ɛm /
noun, plural ems.
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Question 1 of 7
This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
Origin of em
First recorded in 1860–65
Definition for em (2 of 7)
[ uhm ]
/ əm /
them: Put 'em down there.
Origin of 'em
First recorded in 1350–1400; Middle English hem, Old English heom, dative and accusative plural of he1
Definition for em (3 of 7)
Symbol, Physical Chemistry.
Definition for em (4 of 7)
Definition for em (5 of 7)
variant of en-1 before b, p, and sometimes m:embalm.
Definition for em (6 of 7)
variant of en-2 before b, m, p, ph:embolism, emphasis.
Definition for em (7 of 7)
Engineer of Mines.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for em (1 of 3)
/ (ɛm) /
Also called: mutton, mut the square of a body of any size of type, used as a unit of measurement
Also called: pica em, pica a unit of measurement used in printing, equal to one sixth of an inch
Word Origin for em
C19: from the name of the letter M
British Dictionary definitions for em (2 of 3)
/ (əm) /
an informal variant of them
British Dictionary definitions for em (3 of 3)
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
Medical definitions for em (1 of 2)
Medical definitions for em (2 of 2)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.