rem

¹

[ rem ]

noun

, Nucleonics.

1. the quantity of ionizing radiation whose biological effect is equal to that produced by one roentgen of x-rays.

REM

²

[ rem ]

noun

1. rapid eye movement.

REM

¹

abbreviation for

1. rapid eye movement

REM

²

/ rɛm /

acronym for

1. roentgen equivalent man

rem

/ rĕm /

1. 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.

rem

1. An acronym for r oentgen e quivalent m an. A unit of absorbed doses of radiation .

Notes

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

Word History and Origins

Origin of rem¹

1945–50; r(oentgen) e(quivalent in) m(an)

Origin of rem²

First recorded in 1955–60

Example Sentences

For instance, in active REM sleep, breathing and pulse may be irregular, and small muscular twitches are common.

From The Daily Beast

My scores for light, deep, and REM sleep were well within normal, but I still felt sleepy in the morning.

From The Daily Beast

It is the only popular consumer technology to measure both REM (which restores the mind) and deep sleep (which restores the body).

From The Daily Beast

But I suppose a kind of longstanding love of specific bands would be Radiohead, Wilco, Neil Young, Tom Waits, REM.

From The Daily Beast

The most recent service opened with the REM song “Everybody Hurts.”

From The Daily Beast

Terti quonam in statu rem Christianam in his terris offenderimus.

From Project Gutenberg

Seqvitvr iam ex initio propositis tertium, nimirum vt exponatur, quonam tand loco rem Christianam his in locis offenderimus.

From Project Gutenberg

Quonam in statu rem Christianam his in locis offenderit Societas.

From Project Gutenberg

Qui sonus ad aures nostras ideo non peruenit, quia vltra rem fit':—a sufficient reason.

From Project Gutenberg

This is indeed keeping to the Text-Rem rem quocunque modo rem.

From Project Gutenberg