hereditarian

[ huh-red-i-tair-ee-uh n ]
/ həˌrɛd ɪˈtɛər i ən /

noun

a person who believes that differences between individuals or groups, including moral and intellectual attributes, are predominantly determined by genetic factors (opposed to environmentalist).

adjective

characteristic of or based on such belief: hereditarian theories.

Origin of hereditarian

1880–85; heredit(y) or heredit(ary) + -arian

OTHER WORDS FROM hereditarian

he·red·i·tar·i·an·ism, noun