/ Dictionary / Index B blast cell: Meaning and Definition of Find definitions for: blast' cell" Pronunciation: [key] — Biol. Biol. any undifferentiated or immature cell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blast blasted Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language