originally, a medicine of a thicker consistence than sirup, prepared with opium.-any medicine that contains opium, and has the quality of inducing sleep or repose; a narcotic.-anything which induces rest or inaction; that which quiets uneasiness.-inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of hermes.-to subject to the influence of an opiate; to put to sleep.