/ Dictionary / Index D Dacron: Meaning and Definition of Find definitions for: Da•cron Pronunciation: (dā'kron, dak'ron), [key] — Trademark. Trademark. a brand of polyester textile fiber that is wrinkle-resistant and strong. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dacron (Thesaurus) dacquoise dacryo- Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language