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THC

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Pharmacology.
  1. tetrahydrocannabinol.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for thc

THC

abbreviation for
  1. tetrahydrocannabidinol: the active ingredient in cannabis, giving it its narcotic and psychoactive effects
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

Word Origin and History for thc

n.

active ingredient in marijuana and hashish, 1968, short for tetrahydrocannabinol (1940).

Online Etymology Dictionary, © 2010 Douglas Harper

thc in Medicine

THC

(tē′āch-sē)
n.
  1. Tetrahydrocannabinol; a compound that is obtained from cannabis or is made synthetically; it is the primary intoxicant in marijuana and hashish.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.