first-degree relative

noun

A blood relative who shares roughly half a person's DNA, such as a parent, full sibling, or child.

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Meanings

nounfirst-degree relative (plural first-degree relatives)

plural first-degree relatives

  1. A blood relative who shares roughly half a person's DNA, such as a parent, full sibling, or child.
Cite this entry
APA

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

MLA

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

Chicago

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

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