/ Dictionary / Index B B lymphocyte: Meaning and Definition of Find definitions for: B lymphocyte Pronunciation: [key] — Immun. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Bly blype 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