noun
Meaning 1
Synonym of REM sleep.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: REM sleep
Antonyms: none provided
Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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No pronunciation record was provided for this word.
noun
Synonym of REM sleep.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Synonyms: REM sleep
Antonyms: none provided
noun
a recurring sleep state during which dreaming occurs; a state of rapidly shifting eye movements during sleep
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: rapid eye movement sleep, REM sleep, rapid eye movement, REM
Antonyms: none provided
Broader terms: sleep, slumber
History
So called because of the similarity of the brain waves to those during waking life.