English Reference

Word

REM

Phoneticsrem

/ˈɹɛm/

Definition

n. Stands for rapid eye movement. A stage of sleep where your eyes move quickly and you have most of your dreams.

n. Abbreviation for rapid eye movement. A recurring sleep phase characterized by rapid eye movements, high brain activity, and muscle paralysis. Typically associated with vivid dreaming.

Examples

“Most people dream during the REM stage of sleep.”

“Alcohol consumption can disrupt your sleep cycle and prevent you from getting enough REM sleep.”

“Research suggests that REM sleep plays a critical role in memory consolidation and emotional regulation, as the brain processes the day's events while the body remains largely immobile.”

Examples

simple

“Most people dream during the REM stage of sleep.”

contextual

“Alcohol consumption can disrupt your sleep cycle and prevent you from getting enough REM sleep.”

complex

“Research suggests that REM sleep plays a critical role in memory consolidation and emotional regulation, as the brain processes the day's events while the body remains largely immobile.”

Usage

Often used as a modifier before 'sleep' or 'cycle'.

Real-World Examples

“A different pattern appeared as the brain moved from non-REM sleep into REM sleep.”
ScienceDaily · 26 Sept 2026

Etymology

From the initial letters of rapid eye movement.

Clippings * (remaining time): Clipping of remaining. * (remark): Clipping of remark.

Abbreviation

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domains

ChemistryComputingMusic

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

englishreference.com/q/rem

English Reference