noun
presumption of legitimacy; presumption of child in wedlock
Legal term: a child born within 300 days of divorce is presumed to be the ex-husband's. Used in Japanese family law.
嫡出推定の規定は民法に定められている。
The provision on the presumption of legitimacy is stipulated in the Civil Code.
離婚後300日以内に生まれた子には嫡出推定が及ぶ。
The presumption of legitimacy applies to a child born within 300 days of divorce.