A protein substance produced in the blood or tissues in response to a specific antigen, such as a bacterium or a toxin. Antibodies destroy or weaken bacteria and neutralize organic poisons, thus forming the basis of immunity.

 
  • 抗體,免疫體血液或組織針對某種抗原如細菌或毒素而產(chǎn)生的蛋白質(zhì)物質(zhì)??贵w消滅細菌或削弱其作用,中和有機毒素,因而形成免疫力
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