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THC

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Pharmacology.
  1. tetrahydrocannabinol.
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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
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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

Word Origin and History for thc

n.

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

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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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.