\Al*lop"a*thy\, n. [Gr. ? other + ? suffering, ?, ?, to suffer: cf. G. allopathie, F. allopathie. See {Pathos}.] That system of medical practice which aims to combat disease by the use of remedies which produce effects different from those produced by the special disease treated; -- a term invented by Hahnemann to designate the ordinary practice, as opposed to {homeopathy}.