/ Dictionary / Index H Hexateuch: Meaning and Definition of Find definitions for: Hex•a•teuch Pronunciation: (hek'su-tk", -tyk"), [key] — n. the first six books of the Old Testament. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexasyllable hexavalent Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language