Definition of "drug addiction" [drug addiction]

• An addiction to a drug (especially a narcotic drug) (noun)

WordNet. Princeton University. 2010.

• "Dr Ellis gave a clear account of his conversation with the sergeant, explaining his knowledge of Mrs Holland’s drug addiction and his reasons for concealing it at the first visit."
• "But Trent had a secret sin-a drug addiction that he couldn t kick by himself."
• "His mother's drug addiction during pregnancy and a placental malfunction had shut off Robby's senses as surely as a sinking ship condemns compartment after compart­ment to the sea by the shutting of watertight doors."