third-degree relative

noun

A blood relative who shares roughly an eighth of a person's DNA, such as a great-grandparent, first cousin, half-aunt, half-uncle, half-niece, half-nephew, or great-grandchild.

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Meanings

nounthird-degree relative (plural third-degree relatives)

plural third-degree relatives

  1. A blood relative who shares roughly an eighth of a person's DNA, such as a great-grandparent, first cousin, half-aunt, half-uncle, half-niece, half-nephew, or great-grandchild.
Cite this entry
APA

third-degree relative. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/third-degree%20relative

MLA

“third-degree relative.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/third-degree%20relative. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “third-degree relative,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/third-degree%20relative.

Source: third-degree relative on Wiktionary, CC BY-SA 4.0.