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hypnapagogic hyp·nap·a·gog·ic (hĭp-nāp'ə-gŏj'ĭk, -gō'jĭk)
Causing wakefulness; preventing sleep.
Of or relating to a state similar to the hypnagogic through which the mind passes while coming out of sleep.
Relating to the images or hallucinations sometimes perceived during this state.