/ Dictionary / Index I isocitric acid: Meaning and Definition of Find definitions for: i'so•cit'ric ac'id Pronunciation: (ī'su-si'trik, ī"su-), [key] — Biochem. Biochem. a major intermediate in the Krebs cycle, having the formula CHO. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isochroous isoclinal Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language