/ Dictionary / Index T transplantation antigen: Meaning and Definition of Find definitions for: transplanta'tion an"tigen Pronunciation: [key] — Immunol. Immunol. a histocompatibility antigen identified by its effect on the rejection of transplanted cells or tissues. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. transplant transplantee Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language