/ Dictionary / Index T tetrahydrocannabinol: Meaning and Definition of Find definitions for: tet•ra•hy•dro•can•nab•i•nol Pronunciation: (te"tru-hī"dru-ku-nab'u-nôl", -nol"), [key] — n. Pharm. a compound, CHO, that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbr.: THC Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tetrahydrocannabinol (Thesaurus) tetrahydric tetrahydrofuran Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language