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REM

Pronunciation (US): 

 Dictionary entry overview: What does REM mean? 

REM (noun)
  The noun REM has 2 senses:

1. a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
2. (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays

  Familiarity information: REM used as a noun is rare.


 Dictionary entry details 


REM (noun)


Sense 1REM [BACK TO TOP]

Meaning:

A recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep

Classified under:

Nouns denoting stable states of affairs

Synonyms:

paradoxical sleep; rapid eye movement; rapid eye movement sleep; REM; REM sleep

Hypernyms ("REM" is a kind of...):

sleep; slumber (a natural and periodic state of rest during which consciousness of the world is suspended)


Sense 2REM [BACK TO TOP]

Meaning:

(Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays

Classified under:

Nouns denoting quantities and units of measure

Hypernyms ("REM" is a kind of...):

radioactivity unit (a measure of radioactivity)


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