Top Definition
A class of antibodies found in the body. IgG immunoglobulins are the only antibodies that are able to cross to the placenta. The IgG antibody exists as a single monomeric form and is incredibly important in the body's immune response - especially in cell recognition, opsonization, and complement activation.
"The IgG immunoglobulin antibody was the immunogloblin that was first found in the developing embryo"
by DCEskimo06 October 08, 2008
5 Words related to IgG Immunoglobulin

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