noun
Anthropological term for the custom of marrying outside one's own clan, tribe, or social group. Often contrasted with 族内婚 (endogamy).
See also: 族内婚
多くの伝統社会では、族外婚のルールが厳しく守られていた。
In many traditional societies, the rules of exogamy were strictly observed.
Exogamy can serve to strengthen alliances between different groups.