Rem definition

rĕm
Frequency:
A basic unit used to measure the amount of biological damage caused by various types of ionizing radiation, equal to the dose that produces the same amount of damage in human tissue as one roentgen of X-rays or gamma rays (0.01 sievert)
noun
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(psychol.) The periodic, rapid, jerky movement of the eyeballs under closed lids during stages of sleep associated with intense dreaming.
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A unit for measuring absorbed doses of radiation, equivalent to one roentgen of x-rays or gamma rays.
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Rem is a unit for measuring the amount of ionizing radiation that would be required to produce biological damage, or the stage of sleep characterized by rapid eye movement.

An example of a rem is a unit used after body tissue is exposed to gamma rays.

An example of REM is the time of dreaming and deep sleep.

noun
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A unit for measuring absorbed doses of radiation, equivalent to one roentgen of x-rays or gamma rays.
noun
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The twitching movements of the eye muscles and other physiological changes that occur during REM sleep.
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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.
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Rapid eye movement, a sleep state.
noun
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A dose of absorbed radiation equivalent to one roentgen of X-rays or gamma rays.
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(computing) A remark; a programming language statement used for documentation (in BASIC for example); also used in DOS batch files.
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(knitting) Remaining.
abbreviation
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anagrams
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anagrams
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Rapid eye movement.
noun
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Remaining time: In music, the time remaining in a track.
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(computing) A programming language statement used for documentation (in BASIC for example); also used in DOS batch files.
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(chemistry) Rare earth metal(s).
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The amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays.
noun
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The twitching movements of the eye muscles and other physiological changes that occur during REM sleep.
noun
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The amount of ionizing radiation required to produce the same biological effect as one rad of high-penetration x-rays.
noun
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Other Word Forms

Noun

Singular:
rem
Plural:
rems

Origin of rem

  • r(oentgen) e(quivalent in) m(an)

    From American Heritage Dictionary of the English Language, 5th Edition

  • r(apid) e(ye) m(ovement)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From the initial letters of rapid eye movement.

    From Wiktionary

  • Abbreviation of Roentgen equivalent in man.

    From Wiktionary

  • Shortened from rare earth metal.

    From Wiktionary

  • Shortened from remaining.

    From Wiktionary

  • Shortened from remark.

    From Wiktionary

  • Shortening.

    From Wiktionary