hereditarian

noun

he·​red·​i·​tar·​i·​an hə-ˌre-də-ˈter-ē-ən 

: an advocate of the theory that individual differences in human beings can be accounted for primarily on the basis of genetics

hereditarian adjective

Word History

Etymology

heredit(ary) + -arian

First Known Use

1881, in the meaning defined above

Medical Definition

hereditarian

noun

he·​red·​i·​tar·​i·​an hə-ˌred-ə-ˈter-ē-ən 

: an advocate of the theory that individual differences in human beings can be accounted for primarily on the basis of genetics

hereditarian adjective

hereditarianism

-ē-ə-ˌniz-əm 

noun