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rem
[ rem ]
/ rɛm /
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noun Nucleonics.
the quantity of ionizing radiation whose biological effect is equal to that produced by one roentgen of x-rays.
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Origin of rem
1945–50; r(oentgen)e(quivalent in)m(an)
Words nearby rem
reluctate, reluctivity, relume, relumine, rely, rem, remain, remainder, remainderman, remains, remake
Other definitions for rem (2 of 2)
Origin of REM
First recorded in 1955–60
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use rem in a sentence
British Dictionary definitions for rem (1 of 2)
REM1
abbreviation for
rapid eye movement
British Dictionary definitions for rem (2 of 2)
REM2
rem
/ (rɛm) /
n acronym for
roentgen equivalent man
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
Scientific definitions for rem
rem
[ rĕm ]
The amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays. The rem has been replaced in most scientific contexts by the sievert.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for rem
notes for rem
A normal medical x-ray delivers about 0.02 rem; a fatal dose of radiation is several thousand rem.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.