Definition of "drug abuse" []

• Excessive use of drugs (noun)

WordNet. Princeton University. 2010.

• "But I remembered how Leary, Alpert, and others had begun to imbue drugs with philosophic, religious, and political properties—and the flood of bandwagon-jumping drug abuse that had ensued when the wrong people listened."
• "The success of the Stanford Program encouraged numerous other health communication campaigns, aimed at drug abuse prevention and smoking prevention among schoolchildren, family planning, and HIV/AIDS prevention."
• "Research on the rapid diffusion of a school-based drug abuse prevention program called DARE Drug Abuse Resistance Education disclosed a high degree of re-invention by local schools."