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🇪🇸Spanish Source WordCode: ES

sueño paradójico

Pronunciation / Transliteration: ˈswe.ɲo pa.ɾaˈðo.xi.ko

🇬🇧 Direct English Meaning:
Paradoxical sleep/ˌpær.əˈdɒk.sɪ.kəl sliːp/
nounCEFR C1 (Advanced)Top #45000 frequency
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🇪🇸 Example Sentence in Spanish:

"El sueño paradójico se caracteriza por movimientos oculares rápidos."

Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    Another term for REM (rapid eye movement) sleep, characterized by an active brain state resembling wakefulness combined with profound muscle relaxation.

    "During paradoxical sleep, the sleeper experiences vivid dreaming and high neural activity while skeletal muscles remain completely at rest."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Coined in the mid-20th century, combining the adjective paradoxical (derived from Greek paradoxon, meaning contrary to expectation) with the Old English noun sleep. The term was popularized in neurobiology and sleep research to describe the stage of sleep where the brain is highly active yet the body remains physically paralyzed.

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