ソロレートMeanings1nounsororateAnthropological term for the custom of marrying the sister of a deceased wife. Rare in everyday Japanese; mainly used in academic contexts. Compare レビレート (levirate).See also: レビレートソロレート婚こんは、一いち部ぶの文ぶん化かで見みられる慣かん習しゅうである。Sororate marriage is a custom found in some cultures.