noun
Anthropological term for the custom where a widower marries his deceased wife's sister. Used in academic or technical contexts.
ソロレート婚は、一部の伝統社会で見られる慣習です。
Sororate marriage is a custom observed in some traditional societies.
Levirate marriage, where a widow marries her deceased husband's brother. The counterpart to sororate marriage.
From English 'sororate' (from Latin 'soror' meaning sister) combined with 婚 (marriage).