controlled substance


noun

any of a category of behavior-altering or addictive drugs, as heroin or cocaine, whose possession and use are restricted by law.

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Origin of controlled substance

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for controlled substance

controlled substance

n.

A drug or chemical substance whose possession and use are regulated under the Controlled Substances Act.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.