/ Dictionary / Index S stem cell: Meaning and Definition of Find definitions for: stem' cell" Pronunciation: [key] — Cell Biol. Cell Biol. a cell that upon division replaces its own numbers and also gives rise to cells that differentiate further into one or more specialized types, as various B cells and T cells. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stem canker stem duchy Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language