hard drug

noun, Pharmacology
1.
an addicting drug capable of producing severe physical or psychological dependence, as heroin.
Origin
1965-70, Americanism
Slang definitions & phrases for hard drug

hard drug

noun phrase

A narcotic, like heroin or morphine, that is powerfully addictive and injurious: The American problem is heroin, as ''hard'' a drug as there is

[1960s+ Narcotics; probably modeled on hard liquor]