Word.ws English Dictionary

rem

rem is the initialism of rapid eye movement.

Meaning of rapid eye movement

Noun

rapid eye movement (countable and uncountable, plural rapid eye movements)

  1. Fast movement of the eyes, characterising REM sleep

Noun (1)

rem (plural rems)

  1. A non-SI unit of measure for radiation dose, measured as equivalent dose, effective dose, or committed dose, from one roentgen of X-rays or gamma rays.

Noun (2)

rem (plural rems)

  1. A remark; a programming language statement used for documentation (in BASIC for example); also used in DOS batch files.

Adjective

rem (not comparable)

  1. Remaining.
    • Knit 1 row. Dec 1 st at each end of next row and at each end of every foll alt row until 2 sts rem.2009, Sally Muir, Joanna Osborne, Diana Miller, Pet Projects: The Animal Knits Bible, page 71

Noun (3)

rem (plural rems)

  1. A unit relative to the declared font size of the root element in an HTML document.
    • Like the em unit, the rem unit is based on declared font size. The difference—and it’s a doozy—is that whereas em is calculated using the font size of the element to which it’s applied, rem is always calculated using the root element.2017, Eric A Meyer, Estelle Weyl, CSS: The Definitive Guide: Visual Presentation for the Web, Kindle edition, O'Reilly Media, page 126

Noun (4) capitalized: REM

REM (countable and uncountable, plural REMs)

  1. (abbreviation, initialism) Initialism of rapid eye movement.
    • Similarly, the brain-penetrating Hrh2 antagonist zolantidine had no effect on light-induced phase shift as shown for hamsters, or the lengths or distributions of NREM, REM and wakefulness states as shown on rats.2015 December 11, “On the Role of Histamine Receptors in the Regulation of Circadian Rhythms”, in PLOS ONE, →DOI

Noun (5) capitalized: REM

REM (uncountable)

  1. (abbreviation, initialism) Initialism of remaining time.

Noun (6) capitalized: REM

REM (plural REMs)

  1. A remark (programming language statement used for documentation).
    • I think it should be upgraded to Visual BASIC, but I'm no good at that. So maybe someone here would like to take a crack at it. There are only 40 lines of active code, plus a few REMs. About 100 BASIC commands altogether.2006 December 24, David Williams, “satellite program”, in comp.lang.basic.visual.misc (Usenet)

Noun (7) capitalized: REM

REM (plural REMs)

  1. (abbreviation, initialism) Initialism of rare earth metal.
  2. (abbreviation) Abbreviation of reactive electrochemical membrane.
  3. (abbreviation, initialism) Initialism of Reference Exit Marker.

Proper noun capitalized: Rem

Rem

  1. (Egyptian) An Egyptian fish god who fertilized the land with his tears.

Noun (8) capitalized: Rem

Rem (plural Rems)

  1. (colloquial) A Remington firearm.
    • Pre-64 Win has a heritage that can't be beat. For me, it's Rems for prarie dogs and paper, Wins (or 1917 Enfields) for stuff that wants to stomp you into a greasy spot on the tundra.1997 December 23, Marcus [username], “Re: New Pre '64 or 700 action?”, in rec.guns (Usenet)

Forms of rem

Noun
pluralrems
pluralREMs
alternative formR.E.M.
alternative formR. E. M.
alternative formrem
alternative formrem.
pluralRems
Proper noun
alternative formRemi

Origin of rem

Initialism.

Abbreviation of Roentgen equivalent in man.

Shortening of remark.

Words formed from rem

Phrases with rem

Words that rhyme with rem

22 more rhymesFewer rhymes

Questions about rem

What does rem mean?
Rem means a non-SI unit of measure for radiation dose, measured as equivalent dose, effective dose, or committed dose, from one roentgen of X-rays or gamma rays.
What is rem the initialism of?
Rem is the initialism of rapid eye movement.
What part of speech is rem?
Rem can be a noun, an adjective or a proper noun.
What is the plural of rem?
The plural of rem is rems.

Words near rem in the dictionary

  1. Relyeas
  2. relyed
  3. relying
  4. relying on
  5. relying upon
  6. rem
  7. rem out
  8. REM rebound
  9. REM rebounds
  10. REM sleep
  11. REM sleeps

Source and license

Adapted from Wiktionary: rem (page history and authors); REM (page history and authors); Rem (page history and authors); rapid eye movement (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “rem.” Word.ws, https://word.ws/rem. Based on Wiktionary, CC BY-SA 4.0.