A substance, usually an antibody, that reacts against or binds to globulin proteins found in blood.
From anti- (against) + globulin (a type of protein). The term comes from immunology and was coined in the 20th century as scientists discovered these immune system molecules.
Antiglobulins are crucial in the Coombs test, which doctors use to detect hemolytic anemia—without understanding these molecular interactions, we couldn't diagnose certain life-threatening blood disorders!
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