Agrypnotic

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]



From WordNet (r) 2.0 [wn]:

  agrypnotic
       adj : of or pertaining to agrypnia