Dictionary

penetrance

noun pen·e·trance \ˈpe-nə-trən(t)s\

Definition of PENETRANCE

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

International Scientific Vocabulary, from Latin penetrare
First Known Use: 1934
Medical Dictionary

penetrance

noun pen·e·trance \ˈpen-ə-trən(t)s\

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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