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hereditist

American  
[huh-red-i-tist] / həˈrɛd ɪ tɪst /

noun

  1. hereditarian.

hereditist British  
/ həˈrɛdɪtɪst /

noun

  1. any person who places the role of heredity above that of the environment as the determining factor in human or animal behaviour

"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

Etymology

Origin of hereditist

First recorded in 1870–75 for an earlier sense, “one who advocates hereditary monarchy, a legitimist”; current sense dates from 1885–90; heredit(y) ( def. ) + -ist ( def. )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.