/ Dictionary / Index T triethylamine: Meaning and Definition of Find definitions for: tri•eth•yl•a•mine Pronunciation: (trī-eth'ul-u-mēn", -eth"ul-u-mēn', -am'in), [key] — n. Chem. a colorless, flammable liquid, CHN, used chiefly as a solvent in chemical synthesis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triethyl triethyl orthoformate Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language