rem

¹ American  

[rem] / rɛm /

noun

Nucleonics.

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

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REM ² American  

[rem] / rɛm /

noun

1. rapid eye movement.

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REM ¹ British  

/ rɛm /

acronym

1. roentgen equivalent man

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REM ² British  

abbreviation

1. rapid eye movement

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rem Scientific  

/ 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.

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rem Cultural  

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

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Discover More

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

Etymology

Origin of rem¹

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

Origin of REM²

First recorded in 1955–60

Example Sentences

The findings support the idea that REM sleep, the rapid eye movement stage of sleep when vivid and sometimes lucid dreams occur, may be especially helpful for creative problem solving.

From Science Daily

During REM sleep, scientists replayed the soundtracks linked to half of the unsolved puzzles to selectively reactivate those memories.

From Science Daily

The study, "Creative problem-solving after experimentally provoking dreams of unsolved puzzles during REM sleep" was published in the journal Neuroscience of Consciousness on Feb. 5.

From Science Daily

A study from the University of Pennsylvania Perelman School of Medicine, published in the journal Sleep, found that pink noise reduced REM sleep and disrupted overall sleep recovery.

From Science Daily

"REM sleep is important for memory consolidation, emotional regulation and brain development, so our findings suggest that playing pink noise and other types of broadband noise during sleep could be harmful -- especially for children whose brains are still developing and who spend much more time in REM sleep than adults," said study lead author Mathias Basner, MD, PhD, professor of Sleep and Chronobiology in Psychiatry.

From Science Daily