Translation guide
The study or practice of improving the human gene pool, often by selective breeding or genetic intervention. In Japanese, this is a direct loanword or a native calque, used in academic, historical, or ethical discussions.
Referring to the field of study or the set of beliefs about improving human hereditary traits.
The standard Japanese term for eugenics as an academic discipline or ideology. Used in formal and technical contexts.
優生学は20世紀初頭に広く支持された。
Eugenics was widely supported in the early 20th century.
Loanword from English, used occasionally in academic or international contexts. Less common than 優生学.
ユージェニックスの倫理的問題が議論されている。
The ethical issues of eugenics are being debated.
Describing actions, laws, or programs aimed at improving genetic quality, often with negative historical connotations.
Refers to eugenic policies, such as forced sterilization or marriage restrictions. Common in historical and ethical discussions.
ナチス・ドイツの優生政策は多くの悲劇を生んだ。
The eugenic policies of Nazi Germany caused many tragedies.
Means 'eugenic measures' and is used in formal or legal contexts.
優生学的な措置は人権侵害とみなされることがある。
Eugenic measures are sometimes regarded as human rights violations.
Referring to contemporary practices like genetic screening or designer babies, often discussed in bioethics.
Literally 'genetic improvement', used in contexts of genetic engineering or selective breeding, not necessarily tied to the historical eugenics movement.
遺伝子改良の技術は倫理的な議論を呼んでいる。
Genetic improvement technologies are sparking ethical debates.
Means 'eugenic selection', used in bioethics to describe choosing embryos or traits.
優生的選択は生命倫理の重要なテーマだ。
Eugenic selection is an important theme in bioethics.
In Japanese, as in English, the term 優生学 carries strong negative historical connotations due to its association with Nazi Germany and forced sterilizations. Use with care, especially in casual conversation.
優生学 refers specifically to the historical ideology and movement, while 遺伝子改良 is a broader term for genetic improvement without the same historical baggage. In modern bioethics, 遺伝子改良 or 遺伝子操作 are more neutral.