This is the 7595th most frequent Russian word.
евгеника
Eugenics: the study or practice of improving the genetic quality of a population.
The word 'евгеника' (eugenics) is used here as a term to describe a scientific and social theory from the past.
Евгеника была популярной теорией в начале двадцатого века.
Eugenics was a popular theory in the early 20th century.
Here, 'евгеника' is used to refer to certain pseudoscientific approaches criticized by modern scientists.
Современная наука отвергает большинство идей евгеники.
Modern science rejects most ideas of eugenics.
In this sentence, 'евгеника' is used in the context of ethical and philosophical debates about its implications.