1. The attraction between an antigen and an antibody. ��������ԭ�Ϳ���֮����������
2. Objective To understand the relativity between sterility and anti sperm antibody. Ŀ���˽ⲻ��֢�뿹���ӿ��������ԡ�
3. Of course, the bioevolutionists could also harvest an antibody against, say, a hepatitis virus and then evolve an imitation hepatitis virus to match the antibody. ��Ȼ�ˣ������������Ҳ�����ջ�һ�ֿ���Կ�������˵�����ײ�����֮���ݻ���һ�ַ¸��ײ������뿹����ƥ�䡣
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n.
1. any of a large variety of proteins normally present in the body or produced in response to an antige