Hypnagogic

Hypnagogic
Concerning the drowsiness one commonly feels before sleep, the transitional state preceding sleep, and also the hallucinations that may occur at that time. The original French word "hypnagogique" was derived from Greek roots "hypno-", sleep + "agogos", leading = leading to sleep. In the 19th century "hypnagogique" came across the English Channel and became "hypnagogic." A closely allied term is "hypnoidal." It means resembling hypnosis and also refers to the subwaking state, the condition intermediate between sleeping and waking.
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Denoting a transitional state, related to the hypnoidal, preceding sleep; applied also to various hallucinations that may manifest themselves at that time. See hypnoidal. [hypno- + G. agogos, leading]

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hyp·na·go·gic also hyp·no·go·gic .hip-nə-'gäj-ik, -'gō-jik adj of, relating to, or occurring in the period of drowsiness immediately preceding sleep <\hypnagogic hallucinations> compare HYPNOPOMPIC
hyp·na·go·gi·cal·ly -ji-k(ə-)lē adv

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adj.

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hyp·na·gog·ic (hip″nə-gojґik) 1. hypnotic (defs. 1 and 2). 2. occurring just before sleep; applied to hallucinations occurring at sleep onset.

Medical dictionary. 2011.

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  • hypnagogic — [hip΄nə gäj′ik] adj. [ HYPN(O) + AGOG(UE) + IC] 1. causing sleep; soporific 2. designating or of the state intermediate between wakefulness and sleep [hypnagogic fantasies]: Also sp. hypnogogic …   English World dictionary

  • Hypnagogic — Hyp na*gog ic, a. [Gr. ? sleep + ? a carrying away.] Leading to sleep; applied to the illusions of one who is half asleep. [1913 Webster] …   The Collaborative International Dictionary of English

  • hypnagogic — 1868, from Fr. hypnagogique, from Gk. hypnos “sleep” (see SOMNOLENCE (Cf. somnolence)) + agogos “leading” (see ACT (Cf. act)). Etymologically, inducing sleep, but used mostly with a sense pertaining to the state of consciousness when… …   Etymology dictionary

  • hypnagogic — also hypnogogic adjective Etymology: French hypnagogique, from Greek hypn + agōgos leading, inducing, from agein to lead more at agent Date: 1886 of, relating to, or occurring in the period of drowsiness immediately preceding sleep < hypnagogic… …   New Collegiate Dictionary

  • hypnagogic — hyp•na•gog•ic [[t]ˌhɪp nəˈgɒdʒ ɪk, ˈgoʊ dʒɪk[/t]] adj. 1) psl phl of or pertaining to the period of drowsiness between wakefulness and sleep: hypnagogic hallucinations Compare hypnopompic 2) psl pha inducing drowsiness • Etymology: 1885–90; <… …   From formal English to slang

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  • hypnagogic hallucination —    Also known as hypnagogic imagery, hypnagogic reverie, hypnagogic illusion, hypnagogic visualization, presomnal sensation, predormital hallucination, anthypnic sensation, oneirogagic image, phantasma, vision of half sleep, and faces in the dark …   Dictionary of Hallucinations

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