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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the relationship between a man and his sister's children, generally her sons.
  • n. refers to a special relationship between a man and a maternal uncle, and the mutual responsibilities between them.


From Latin avunculus: uncle. (Wiktionary)


  • It may also be a patruate cousin-group and an avunculate cousin-group; and in general, every member of a brother-group has the same consanguineal relation to persons outside of the group as that of every other member.

    The Siouan Indians

  • It may also be a patruate-group and an avunculate group.

    The Siouan Indians


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