REM sleep

REM sleep
noun Date: 1965 a state of sleep that recurs cyclically several times during a normal period of sleep and that is characterized especially by increased neuronal activity of the forebrain and midbrain, depressed muscle tone, dreaming, and rapid eye movements — called also paradoxical sleep, rapid eye movement sleep — compare slow-wave sleep

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • REM sleep — is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1 2 hours and are quite variable in length. An episode of REM… …   Medical dictionary

  • REM sleep — [ rem ,slip ] noun uncount a stage of sleep during which you dream and your eyes make small quick movements. REM is an abbreviation for rapid eye movement …   Usage of the words and phrases in modern English

  • REM sleep — [ˈrem sli:p] n [U] technical [Date: 1900 2000; Origin: rapid eye movement] rapid eye movement sleep a period during sleep when your eyes move quickly, when you are dreaming …   Dictionary of contemporary English

  • REM sleep — REM′ sleep n. phl rapid eye movement sleep: a recurrent sleep pattern during which dreaming occurs while the eyes rapidly shift under closed lids Compare slow wave sleep • Etymology: 1965–70 …   From formal English to slang

  • REM sleep — noun a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep • Syn: ↑paradoxical sleep, ↑rapid eye movement sleep, ↑rapid eye movement, ↑REM • Hypernyms: ↑sleep, ↑slumber * * * …   Useful english dictionary

  • REM sleep — Rapid eye movement sleep. One of the five stages of sleep. During REM sleep, the eyes move rapidly while closed and dreams occur. REM sleep is the lightest stage of sleep, during which a person may wake easily. During several hours of normal… …   English dictionary of cancer terms

  • REM sleep — /ˈrɛm slip/ (say rem sleep) noun sleep which occurs in short bursts throughout the sleeping period during which rapid eye movements occur, breathing becomes irregular, blood pressure rises, there is loss of muscle tone, and dreaming occurs. {REM… …   Australian English dictionary

  • REM sleep — UK [ˈrem ˌsliːp] / US [ˈrem ˌslɪp] noun [uncountable] a stage of sleep during which you dream and your eyes make small quick movements. REM is an abbreviation for rapid eye movement …   English dictionary

  • REM sleep — noun The stage of sleep during which most brain activity and dreams occur, characterised by rapid eye movement (REM) …   Wiktionary

  • REM sleep — Physiol. a recurrent period of sleep, typically totaling about two hours a night, during which most dreaming occurs as the eyes move under closed lids and the skeletal muscles are deeply relaxed. Also called paradoxical sleep. Cf. slow wave sleep …   Universalium

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