antigen是什么意思?

antigen的中文含义详细解释：
n. 抗原
antigen的列举例句：
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.
抗体，免疫体血液或组织针对某种抗原如细菌或毒素而产生的蛋白质物质。抗体消灭细菌或削弱其作用，中和有机毒素，因而形成免疫力

Relating to the correspondence between an antigen and the antibody produced in response to it.
同源的与抗原和对其反应产生的抗体同的对应现象有关的