v. i. | 1. | To drudge; to toil laboriously. |
n. | 1. | A drudge . |
| 1. | Any animal, vegetable, or mineral substance used in the composition of medicines. |
| 2. | Any commodity that lies on hand, or is not salable; an article of slow sale, or in no demand; - used often in the phrase "a drug on the market". |
| 3. | any stuff used in dyeing or in chemical operations. |
| 4. | any substance intended for use in the treatment, prevention, diagnosis, or cure of disease, especially one listed in the official pharmacopoeia published by a national authority. |
| 5. | any substance having psychological effects, such as a narcotic, stimulant, or hallucinogenic agent, especially habit-forming and addictive substances, sold or used illegally; as, a drug habit; a drug treatment program; a teenager into drugs; a drug bust; addicted to drugs; high on drugs. |
v. i. | 1. | To prescribe or administer drugs or medicines. |
v. t. | 1. | To affect or season with drugs or ingredients; esp., to stupefy by a narcotic drug. Also Fig. |
| 2. | To tincture with something offensive or injurious. |
| 3. | To dose to excess with, or as with, drugs. |