noun which may take the genitive case particle 'no'
endogenous; intrinsic
Medical term meaning originating from within an organism, tissue, or cell. Used in contexts like 内因性感染 (endogenous infection) or 内因性因子 (intrinsic factor).
内因性うつ病は、体内の化学的不均衡によって引き起こされることがある。
Endogenous depression can be caused by chemical imbalances in the body.
この物質は内因性の抗酸化物質として働く。
This substance acts as an endogenous antioxidant.
Compound of 内 (inside) + 因 (cause) + 性 (nature), literally 'internal cause nature'. The exact historical derivation is uncertain; the term is used in modern medical contexts.