/ Dictionary / Index D Dynel: Meaning and Definition of Find definitions for: Dy•nel Pronunciation: (dī-nel'), [key] — Trademark. Trademark. a brand of modacrylic fiber used in textiles, characterized chiefly by its strength, rapid drying rate, and noncombustibility. yarn or fabric made of this fiber. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dyne dyno Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language