/ Dictionary / Index T triazine: Meaning and Definition of Find definitions for: tri•a•zine Pronunciation: (trī'u-zēn", -zin, trī-az'ēn, -in), [key] — n. Chem. any of a group of three compounds containing three nitrogen and three carbon atoms arranged in a six-membered ring and having the formula CHN. any of a number of their derivatives. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: triazine (Thesaurus) triaxial triazoic Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language