/ Dictionary / Index A alloantibody: Meaning and Definition of Find definitions for: al•lo•an•ti•bod•y Pronunciation: (al"ō-an'ti-bod"ē, -an'tē-), [key] — pl. -bod•ies. an antibody that reacts with an antigen from a genetically different individual of the same species. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alloantibody (Thesaurus) allo- alloantigen 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