/ Dictionary / Index T tachytelic: Meaning and Definition of Find definitions for: tach•y•tel•ic Pronunciation: (tak"i-tel'ik), [key] — adj. Biol. of or pertaining to evolution at a rate faster than the standard for a given group of plants or animals. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tachypnea tacit Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language