Allopathy, a word created by homœopa-thists to distinguish other systems of medical practice from their own. Having adopted the opinion that "like cures like" (similia simi-libus curantur) as the fundamental principle of his doctrine, Hahnemann gave to his own system the name of "homoeopathy," derived from the Greek like, or similar, and disease, and to other systems the name of "allopathy," from other, or different, and disease.