Definition of polygenic
: of, relating to, mediated by, or constituting polygenes : involving two or more nonallelic genes collectively in determining inherited characteristics : multifactorial sense 1
polygenic inheritance polygenic traits Others think the allergic state is polygenic: transmitted by a number of genes whose combined expression is necessary to make a person allergic.— Paul D. Buisseret
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Merriam-Webster unabridged
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Time Traveler for polygenic
The first known use of polygenic was in 1928
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