eugenics

n [sing v] science of the production of healthy intelligent children with the aim of improving the human genetic stock1(6) 优生学; 人种改良学.

ethics, ethnic, ethnically, ethnographer, ethnographic, ethnography, ethnological, ethnologist, ethnology, ethos, ethyl alcohol, etiolate, etiolation, etiology, etiquette, etymological, etymologist, etymology, eucalyptus, eucharist, eulogist, eulogistic, eulogize, eulogize, eulogise, eulogy, eunuch, euphemism, euphemistic, euphonious, euphonium, euphony, euphoria, euphoric, Euphrates, Eur(o)-, Eurasia, Eurasian, eureka, eurhythmics (also euryththmics), Eurocheque,