American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Inducing sleep; soporific.
- adj. Of, relating to, or occurring in the state of intermediate consciousness preceding sleep: hypnagogic hallucinations.
Century Dictionary and Cyclopedia
- Leading to sleep; inducing sleep; hypnotic.
- adj. That induces sleep; soporific, somniferous.
- adj. That accompanies falling asleep; especially, pertaining to the semi-conscious period immediately preceding sleep.
GNU Webster's 1913
- adj. Leading to sleep; -- applied to the illusions of one who is half asleep.
- adj. sleep inducing
- From French hypnagogique, from Ancient Greek ὕπνος ("sleep") + ἀγωγός ("leading"). (Wiktionary)
- French hypnagogique : Greek hupnos, sleep; see hypno- + Greek agōgos, leading (from agein, to lead; see ag- in Indo-European roots). (American Heritage® Dictionary of the English Language, Fourth Edition)
“Because the existing word hypnagogic means “of, relating to, or occurring in the state of intermediate consciousness preceding sleep,” and hypnopompic means “of or relating to the partially conscious state that precedes complete awakening from sleep,” many people came up with hyp - coinages.”
“As to her own ordeal, Henry told her there was a name for the strange, shifting images you see just before sleep: they were called hypnagogic hallucinations, and they often occurred in connection with sleep paralysis.”
“The hallucinations produced in this way are called hypnagogic (from its derivation this term is properly applied only to phenomena observed at the instant when we fall asleep, or when we are imperfectly awakened, and not to the period of most perfect repose), and they occur when the subject is not in a condition favorable to sound sleep.”
“Apparently it's called a hypnagogic hallucination (if it happens as you're going to sleep) and a hypnopompic hallucination if it happens as you're waking.”
“Episodes frequently occur at sleep onset, termed hypnagogic, or while waking up from sleep, termed hypnopompic (Solomonova).”
“In medical parlance, the twitching is called hypnagogic myoclonus (the first word refers to sleep and the second to muscle twitches).”
“It felt like this was the description of a kind of hypnagogic state, one in which reading was like dreaming and dreaming was like creating.”
“The swots call it "hypnagogic", the more commercial-minded are calling it "sugary mutant pop".”
“Many people experience this borderland routinely when slipping into sleep -- "hypnagogic" hallucinations.”
“The Head Trip, which discusses various different states of consciousness, and that's where we learned about the hypnogogic (also sometimes spelled 'hypnagogic'), which is the state that your brain passes through on the way from waking to sleeping, "said Yates.”
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