IMMUNOGLOBULIN Scrabble 21 Words With Friends 31 Definition noun a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response. — synonyms: Ig, immune_serum_globulin, immune_gamma_globulin, immune_globulin See all 221 words you can make from IMMUNOGLOBULIN → 14-letter words Words starting with I Words ending with N ← Unscramble different letters