ex·og·a·mous /ɛkˈsɑgəməs/ 形容詞
  Ex·og·a·mous a.  Relating to exogamy; marrying outside of the limits of one's own tribe; -- opposed to endogenous.
  ◄ ►
  exogamous
       adj 1: characterized by or fit for fertilization by a flower that
              is not closely related [syn: exogamic] [ant: autogamous,
               endogamous]
       2: pertaining to or characterized by the custom of marrying
          only outside the limits of a clan or tribe [syn: exogamic]
          [ant: endogamous]