fullsib

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English[edit]

Etymology[edit]

full +‎ sib

Noun[edit]

fullsib (plural fullsibs)

  1. A full sibling.
    • 2012, In the Light of Evolution: Volume V: Cooperation and Conflict, National Academy of Sciences:
      For example, fullsibs, considered as a genealogical category, are symmetrically related to ego. However, “fullsibs,” considered as an innate category, are ego's matrikin because of the possibility of undetected cuckoldry.