/ Dictionary / Index H hexabasic: Meaning and Definition of Find definitions for: hex•a•ba•sic Pronunciation: (hek"su-bā'sik), [key] — adj. containing six hydrogen atoms capable of being replaced or ionized: a hexabasic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexa- hexachloride Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language