non·​he·​red·​i·​tary ˌnän-hə-ˈre-də-ˌter-ē How to pronounce nonhereditary (audio)
variants or non-hereditary
: not hereditary
a nonhereditary title
nonhereditary diseases

Example Sentences

Recent Examples on the Web Resulting from a random, typically nonhereditary genetic mutation, the disease affects about one in every 10,000 live births in the U.S. and can severely impact a person’s mental and physical development, and life span. Amanda Blanco,, 19 Sep. 2021 Other research shows that nonhereditary forms can result from other factors, including existing medical conditions and diet, reports Maya Yang of the Guardian. David Kindy, Smithsonian Magazine, 13 Aug. 2021 Evan, who turns 2 in December, was born with Prader-Willi syndrome, a rare, nonhereditary genetic disorder that has a most cruel and unusual symptom — chronic hunger. Maureen C. Gilmer, Indianapolis Star, 14 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nonhereditary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1695, in the meaning defined above

Time Traveler
The first known use of nonhereditary was in 1695

Dictionary Entries Near nonhereditary

Cite this Entry

“Nonhereditary.” Dictionary, Merriam-Webster, Accessed 30 Jan. 2023.

Medical Definition


variants or non-hereditary
: not hereditary
nonhereditary cancers

More from Merriam-Webster on nonhereditary

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