/ Dictionary / Index T tristeza: Meaning and Definition of Find definitions for: tris•te•za Pronunciation: (tri-stā'zu), [key] — n. Plant Pathol. a disease of certain citrus trees, characterized by yellowed leaves, wilting, and root destruction, caused by a virus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. triste* tristful Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language