expression, noun-modifying (irregular)
related by blood; blood-related
Used as a prenominal modifier to describe family members connected by blood, not by marriage or adoption.
He thinks of him as a blood-related brother.
Even blood-related parents and children have different ways of thinking.
Kana-mixed spelling, common in less formal writing.
A phrase composed of 血 (blood), の (possessive particle), and 繋がった (past form of 繋がる, 'to be connected'). Literally 'connected by blood'.