Dictionary
Thesaurus
Encyclopedia
Translator
Web
Related Searches
Synonyms
Nearby Words

rem

 - 16 dictionary results
Rem' at Amazon
Low prices on new & used music. Qualified orders over $25 ship free
Amazon.com/music

rem

  [rem]
Use rem in a Sentence
–noun Nucleonics.
the quantity of ionizing radiation whose biological effect is equal to that produced by one roentgen of x-rays.
Origin:
1945–50; r(oentgen) e(quivalent in) m(an)
Rem' at Amazon
Low prices on new & used music. Qualified orders over $25 ship free
Amazon.com/music

REM

  [rem]
–noun
rapid eye movement.
Origin:
1955–60

rapid eye movement

 
–noun
rapidly shifting, continuous movements of the eyes beneath closed lids during the stage of sleep characterized by dreaming.
Also called REM

Origin:
1915–20
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To rem
rem   (rěm)   
n.  

  1. The amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays.

  2. A unit for measuring absorbed doses of radiation, equivalent to one roentgen of x-rays or gamma rays.


[r(oentgen) e(quivalent in) m(an).]
REM   (rěm)   
n.  The rapid, periodic, jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.

[r(apid) e(ye) m(ovement).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Medical Dictionary

Main Entry: rap·id eye movement
Pronunciation: 'rap-&d-
Function: noun
: a rapid conjugate movement of the eyes associated especially with REMsleep called also REM

Main Entry: rem
Pronunciation: 'rem
Function: noun
: the dosage of an ionizing radiation that will cause the same biological effect as one roentgen of X-rayor gamma-ray dosage —compare REP

Main Entry: REM
Pronunciation: 'rem
Function: noun
: RAPID EYE MOVEMENT
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source
Medical Dictionary

rapid eye movement n.

Abbr. REM The rapid periodic jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.

rem (rěm)
n.
The amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays.

REM abbr.
rapid eye movement

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Science Dictionary
rem   (rěm)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Computing Dictionary

REM programming
(From "remark") The keyword used in BASIC to introduce a comment (which continues to the end of the line). MS-DOS probably borrowed it from BASIC. Might be used in the form "REM out" meaning to comment out.
(1998-04-27)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
Cite This Source
Abbreviations & Acronyms
rem
roentgen equivalent in man
REM

  1. rapid eye movement

  2. remark

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Encyclopedia

rem

unit of radiation dosage (such as from X rays) applied to humans. Derived from the phrase Roentgen equivalent man, the rem is now defined as the dosage in rads that will cause the same amount of biological injury as one rad of X rays or gamma rays. Formerly poorly defined, the rem was redefined in 1962 to clarify the usage of the term relative biological effectiveness (RBE) in both radiobiology and radiation protection

Learn more about rem with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Search another word or see rem on Thesaurus | Reference
FacebookTwitterFollow us:
Partner Sites:
Ask AnswersEviteExpediaHotelsHotwireLife123LiveDailyMy Way