immunoglobulin

noun

Etymology: Etymology tree Proto-Indo-European *mey- Proto-Indo-European *moy-nósder. Proto-Italic *moinos Latin mūnus Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in- Latin -is Latin in- -is Latin immūnisder. Middle French immunbor. Middle English English immune Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- English immuno- Latin globus Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -ulus Latin globuluslbor. French globulebor. English globule Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ineclip. English -in English globulin English immunoglobulin From immuno- + globulin.

1. Any of the glycoproteins in blood serum that respond to invasion by foreign antigens and that protect the host by removing pathogens; an antibody.

   “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.”