IgA

Definitions of IgA
  1. noun
    one of the most common of the five major classes of immunoglobulins; the chief antibody in the membranes of the gastrointestinal and respiratory tracts
    synonyms: immunoglobulin A
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    type of:
    Ig, immune gamma globulin, immune globulin, immune serum globulin, immunoglobulin
    a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response
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