from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Inducing sleep; soporific.
- adj. Of, relating to, or occurring in the state of intermediate consciousness preceding sleep: hypnagogic hallucinations.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That induces sleep; soporific, somniferous.
- adj. That accompanies falling asleep; especially, pertaining to the semi-conscious period immediately preceding sleep.
from the GNU version of the Collaborative International Dictionary of English
- adj. Leading to sleep; -- applied to the illusions of one who is half asleep.
from The Century Dictionary and Cyclopedia
- Leading to sleep; inducing sleep; hypnotic.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. sleep inducing
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)
From French hypnagogique, from Ancient Greek ὕπνος ("sleep") + ἀγωγός ("leading"). (Wiktionary)