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


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


characteristic of or based on such belief: hereditarian theories.

Origin of hereditarian

Related forms

he·red·i·tar·i·an·ism, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for hereditarianism


/ (həˌrɛdɪˈtɛərɪəˌnɪzəm) /


psychol a school of thought that emphasizes the influence of heredity in the determination of human behaviourCompare environmentalism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012