re.jec.tion
n.(名词)The act of rejecting or the state of being rejected.拒绝:拒绝的动作或被拒绝的状态Something rejected.被拒绝的事物Medicine The failure of a recipient`s body to accept a transplanted tissue or organ as the result of immunological incompatability; immunological resistance to foreign tissue.【医学】 排异反应:接收者的身体由于免疫系统的不相容而没有能够接受移植的组织或器官;对外来组织的免疫性的抗斥