exogenous
adjective /ekˈsɒdʒənəs/
  /ekˈsɑːdʒənəs/
- (formal) having a cause that is outside itself外源性的 - Technology is usually seen as an exogenous factor, determined by developments outside the country concerned.技术通常被视为一种外生因素,由有关国家以外的发展决定。 
-  exogenous to something These children also have severe problems which are exogenous to the educational system.这些孩子也有教育系统以外的严重问题。 
 
- Technology is usually seen as an exogenous factor, determined by developments outside the country concerned.
- (medical医学 疾病或症状 外源性的 
词源mid 19th cent.: from modern Latin exogena (denoting an exogenous plant, suggested by classical Latin indigena ‘native’) + -ous.