1. Any animal, vegetable, or mineral substance used in the composition of medicines; any stuff used in dyeing or in chemical operations. Whence merchants bring Their spicy drugs.
2. Any commodity that lies on hand, or is not salable; an article of slow sale, or in no demand. But sermons are mere drugs. And virtue shall a drug become. (Dryden)
Origin: f. Drogue, prob. Fr. D. Droog; akin to E. Dry; thus orig, dry substance, hers, plants, or wares. See dry.
to prescribe or administer drugs or medicines.
Origin: cf. F. Droguer.
A substance that is used as a medicine or narcotic.Substances that are capable of altering natural biological processes, with their manipulating nature used in medicine as a corrective measure against deviances from these normal biological processes.