noun
degree of kinship
Legal term used in family law to indicate the proximity of a blood relationship, such as first degree (parent-child) or second degree (siblings).
民法では、一等親は親子、二等親は兄弟姉妹と定められている。
Under the Civil Code, first-degree kinship is defined as parent and child, and second-degree kinship as siblings.
相続の順位は、被相続人との等親の近さによって決まる。
The order of inheritance is determined by the degree of kinship to the deceased.