/ Dictionary / Index I isochronous: Meaning and Definition of Find definitions for: i•soch•ro•nous Pronunciation: (ī-sok'ru-nus), [key] — adj. isochronal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: isochronous (Thesaurus) isochronize isochrony Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language