any of various narcotic or hallucinogenic substances manufactured illegally from a range of chemicals a drug designed to act on a specific molecular target
WordReference Random House Unabridged Dictionary of American English © 2025
design′er drug′,
- Drugsa drug produced by a minor modification in the chemical structure of an existing drug, resulting in a new substance with similar pharmacologic effects, esp. one created to achieve the same effect as a controlled or illegal drug.
- 1980–85
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