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polydrug

[pol-ee-druhg]
adjective
  1. being or pertaining to several drug used simultaneously, especially narcotics or addictive drugs: a center for dealing with polydrug abuse.
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Origin of polydrug

First recorded in 1970–75; poly- + drug1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for poly-drug

poly-drug

adjective
  1. involving or taking more than one kind of illegal druga poly-drug user
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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