gateway drug


noun

any mood-altering drug, as a stimulant or tranquilizer, that does not cause physical dependence but may lead to the use of addictive drugs, as heroin.

Origin of gateway drug

First recorded in 1985–90
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British Dictionary definitions for gateway drug

gateway drug


noun

a recreational drug such as cannabis, the use of which is believed by some to encourage the user to try stronger drugs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012