fullsib

F4U1L1L1S1I1B3

noun

A full sibling.

Scrabble 12
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Meanings

nounfullsib (plural fullsibs)

plural fullsibs

  1. A full sibling.

    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.

    2012, In the Light of Evolution: Volume V: Cooperation and Conflict, National Academy of Sciences

Origin

From full + sib.

Full word history & related roots →
Cite this entry
APA

fullsib. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/fullsib

MLA

“fullsib.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fullsib. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “fullsib,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/fullsib.

Source: fullsib on Wiktionary, CC BY-SA 4.0.