penetrance

noun
pen·​e·​trance | \ ˈpe-nə-trən(t)s How to pronounce penetrance (audio) \

Definition of penetrance

: the proportion of individuals of a particular genotype that express its phenotypic effect in a given environment

Examples of penetrance in a Sentence

Recent Examples on the Web

Research suggests that random fluctuations in gene activity could explain some instances of the phenomenon, known as partial penetrance, which likely plays a role in some human diseases. Quanta Magazine, "Inside the Din, Cells Fight Noise With Noise," 22 May 2014

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

First Known Use of penetrance

1934, in the meaning defined above

History and Etymology for penetrance

International Scientific Vocabulary, from Latin penetrare

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Statistics for penetrance

Last Updated

19 Jun 2019

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Time Traveler for penetrance

The first known use of penetrance was in 1934

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More Definitions for penetrance

penetrance

noun
pen·​e·​trance | \ ˈpen-ə-trən(t)s How to pronounce penetrance (audio) \

Medical Definition of penetrance

: the proportion of individuals of a particular genotype that express its phenotypic effect in a given environment — compare expressivity

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