The Collaborative International Dictionary
Agrypnotic
Agrypnotic \Ag`ryp*not"ic\, n. [Gr. ? sleepless; ? to chase, search for + ? sleep: cf. F. agrypnotique.] Anything which prevents sleep, or produces wakefulness, as strong tea or coffee. [1913 Webster] ||
Wiktionary
agrypnotic
a. (context medicine English) Preventing sleep; causing wakefulness; insomniac. n. (context medicine English) A medication that prevents sleep.
WordNet
agrypnotic
adj. of or pertaining to agrypnia