sibling

Meaning

Noun

• A person who shares a parent; one's brother or sister who one shares a parent with.
• A node in a data structure that shares its parent with another node.
• The most closely related species, or one of several most closely species when none can be determined to be more closely related.

Origin

• 1903, modern revival of , equivalent to sib + -ling. Compare Middle English sib, sibbe, German Sippe. The term apparently meant merely kin or relative until the 20th century when it was applied in a way that aided the study of genetics, which led to its specialized use. For example, the OED has a 1903 citation in which "sibling" must be defined for those who don't know the intended meaning.{{cite-journal
• |year=1903
• |author=Karl Pearson
• |authorlink=Karl Pearson
• |author2=Alice Lee
• |authorlink2=Alice Lee (mathematician)
• |work=Biometrika
• |title=On the laws of inheritance in man
• |volume=2
• |issue=4
• |page=369
• |pageurl=https://archive.org/details/blumenzeitung13hssl/page/369