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)

REM

[ rem ]

/ rɛm /

noun

rapid eye movement.

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

For instance, in active REM sleep, breathing and pulse may be irregular, and small muscular twitches are common.
The Tracker That Might Actually Help You Sleep Better|DailyBurn|October 17, 2014|DAILY BEAST
My scores for light, deep, and REM sleep were well within normal, but I still felt sleepy in the morning.
How I Finally Got to the Bottom of My Insomnia|Gregory Ferenstein|June 26, 2014|DAILY BEAST
It is the only popular consumer technology to measure both REM (which restores the mind) and deep sleep (which restores the body).
How I Finally Got to the Bottom of My Insomnia|Gregory Ferenstein|June 26, 2014|DAILY BEAST
But I suppose a kind of longstanding love of specific bands would be Radiohead, Wilco, Neil Young, Tom Waits, REM.
Toni Collette on ‘The Realistic Joneses,’‘Lucky Them,’ and Crying in ‘The Sixth Sense’|Melissa Leon|June 1, 2014|DAILY BEAST

The most recent service opened with the REM song “Everybody Hurts.”
Atheist Ex-Pastor Jerry DeWitt’s Mission to Red America|David Masciotra|November 17, 2013|DAILY BEAST
Terti quonam in statu rem Christianam in his terris offenderimus.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Seqvitvr iam ex initio propositis tertium, nimirum vt exponatur, quonam tand loco rem Christianam his in locis offenderimus.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Quonam in statu rem Christianam his in locis offenderit Societas.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Qui sonus ad aures nostras ideo non peruenit, quia vltra rem fit':—a sufficient reason.
Chaucer's Works, Volume 1 (of 7) -- Romaunt of the Rose; Minor Poems|Geoffrey Chaucer
This is indeed keeping to the Text-Rem rem quocunque modo rem.
An Account of the Growth of Deism in England|William Stephens

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.

Cultural definitions for rem

rem

An acronym for roentgen equivalent man. A unit of absorbed doses of radiation.

notes for rem

A normal medical x-ray delivers about 0.02 rem; a fatal dose of radiation is several thousand rem.