noun
eugenic sterilization
Medical and historical term for sterilization performed for eugenic reasons. Often discussed in the context of Japan's former Eugenic Protection Law (優生保護法).
旧優生保護法のもとで、多くの人々が優生手術を受けさせられた。
Under the former Eugenic Protection Law, many people were forced to undergo eugenic sterilization.
Compound of 優生 (eugenic, from 優 'superior' + 生 'life/birth') and 手術 (surgery). The term became widely known through Japan's 優生保護法 (Eugenic Protection Law, 1948–1996).