Breadcrumb Home > Thesaurus > I Synonyms of ig Find synonyms for: Noun 1. immunoglobulin, Ig, immune serum globulin, immune gamma globulin, immune globulin, gamma globulin, human gamma globulin, antibody usage: a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ig (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: raconteur Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language