Source : Webster's Revised Unabridged Dictionary (1913)

Allopathic \Al`lo*path"ic\, a. [Cf. F. allopathique.]
   Of or pertaining to allopathy.

Source : WordNet®

allopathic
     adj : of or relating to the practice of allopathy; "allopathic
           remedies" [ant: {homeopathic}]