優生 (ゆうせい)eugenics

優生, its kanji, and other words that share them.Open this graph

Kanji in 優生

優勝ゆうしょうoverall victory; championship
俳優はいゆうactor; actress
優先ゆうせんpreference; priority
女優じょゆうactress
優秀ゆうしゅうsuperior; excellent
優遇ゆうぐうfavorable treatment; favourable treatment
優位ゆういpredominance; superiority
優良ゆうりょうsuperior; excellent
学生がくせいstudent (esp. a university student)
生活せいかつliving; life (one's daily existence)
生産せいさんproduction; manufacture
人生じんせい(human) life (i.e. conception to death)
先生せんせいteacher; instructor
厚生省こうせいしょうMinistry of Health and Welfare (now Ministry of Health, Labour and Welfare)
年生ねんせいpupil in ... year; student in ... year
新生しんせいrebirth; new birth

See how 優生 connects to the rest of Japanese.