/ Dictionary / Index T triaxial: Meaning and Definition of Find definitions for: tri•ax•i•al Pronunciation: (trī-ak'sē-ul), [key] — adj. having three axes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triatomic triazine 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