/ Dictionary / Index A alpha-ketoglutaric acid: Meaning and Definition of Find definitions for: al'pha-ke'to•glu•tar'ic ac'id Pronunciation: (al'fu-kē'tō-gl-tar'ik, al"fu-kē"-), [key] — Biochem. Biochem. a dibasic keto acid, CHO, that occurs as an intermediate in the Krebs' cycle and in protein metabolism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alpha iron alpha-naphthol Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language