THC definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
THC definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A compound, C21H30O2, obtained from cannabis or made synthetically, that is the primary intoxicant in marijuana and hashish.
thc - Medical Definition
Tetrahydrocannabinol; a compound that is obtained from cannabis or is made synthetically; it is the primary intoxicant in marijuana and hashish.