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gam·ma glob·u·lins(gamă globyū-linz)
A class of proteins the most significant of which are immunoglobulins; a serum is made from these immunoglobulins that may be administered to boost a patient's immunity to disease.
n.pl plasma proteins that are essential antibodies that circulate in the immune system. The most significant gamma globulins are antibodies or immunoglobulins. See also immunoglobulins.