having an internal cause or origin 有内在原因的,内源的。 常与 exogenous 相对 the expected rate of infection is endogenous to the system. 预期的传染率源于系统内部。 ■(Biology)growing or originating from within an organism (生)内生的,内源的 endogenous gene sequences. 内源基因序列。 ■(chiefly Psychiatry)(of a disease or symptom) not attributable to any external or environmental factor (主精神病学)(疾病,病症)非外在(或环境)因素引起的 endogenous depression. 内因性抑郁病。 ■confined within a group or society 局限于群体(或社会)的