immunoglobulin

English

Alternative forms

  • Ig (abbreviation)

Etymology

From immuno- +‎ globulin.

Pronunciation

Noun

immunoglobulin (plural immunoglobulins)

  1. (biochemistry, immunology) Any of the glycoproteins in blood serum that respond to invasion by foreign antigens and that protect the host by removing pathogens; an antibody.
    Synonym: antibody
    Hypernym: glycoprotein
    • 1969, Robert P. Orange, K. Frank Austen, “Slow Reacting Substance of Anaphylaxis”, in Advances in Immunology - Volume 10, page 144:
      The recent observation that a heat labile human immunoglobulin, IgE , could mediate the release of both histamine and SRS-Amonkey from primate lung slices (Ishizaka et al., 1969), prompted a re-examination of the biologic activity of rat heat labile homocytotropic antibody.

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