血けつ族ぞく関かん係けい

noun

consanguinity; blood relationship

Formal or legal term for a relationship by blood, as opposed to marriage or adoption. Often used in legal, anthropological, or genealogical contexts.

• 血けつ族ぞく関かん係けいにある者もの同どう士しの結けっ婚こんは法ほう律りつで禁きん止しされている場ば合あいがある。

  Marriage between people who are related by blood is sometimes prohibited by law.

• この書しょ類るいでは、血けつ族ぞく関かん係けいの有う無むを明めい記きしてください。

  Please clearly indicate the presence or absence of a blood relationship on this document.