/ Dictionary / Index H histoblast: Meaning and Definition of Find definitions for: his•to•blast Pronunciation: (his'tu-blast"), [key] — n. Biol. a cell or group of cells capable of forming tissue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. histo- histochemistry Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language