抗原

1. 同种抗体；同族抗体由与抗原相同的种类产生的或衍生的抗体，由它对该抗原作出反应
   An antibody produced by or derived from the same species as the antigen with which it reacts.
2. 抗毒血清，抗毒素包含对一种或多种抗原的特异抗体的人体或动物血清
   Human or animal serum containing antibodies that are specific for one or more antigens.
3. 化合力抗原和抗体之间的相互吸引
   The attraction between an antigen and an antibody.
4. 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
   Relating to the correspondence between an antigen and the antibody produced in response to it.

抗的英语翻译：

原的英语翻译：