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|Noun||1.||plasma protein - any of the proteins in blood plasma|
blood plasma, plasma, plasm - the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
protein - any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
gamma globulin, human gamma globulin - a plasma protein containing the immunoglobulins that are responsible for immune responses