First Known Use: circa 1917
Dictionary
epistasis
noun epis·ta·sis \i-ˈpis-tə-səs\
plural epis·ta·ses\-ˌsēz\
Definition of EPISTASIS
: suppression of the effect of a gene by a nonallelic gene
— ep·i·stat·ic \ˌe-pə-ˈsta-tik\ adjective
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Origin of EPISTASIS
New Latin, from Greek, act of stopping, from ephistanai to stop, from epi- + histanai to cause to stand — more at stand
Medical Dictionary
epistasis
noun epis·ta·sis \i-ˈpis-tə-səs\
plural epis·ta·ses \-ˌsēz\
Medical Definition of EPISTASIS
1
a : suppression of a secretion or discharge b : a scum on the surface of urine
2
: suppression of the effect of a gene by a nonallelic gene <the role of epistasis in polygenic inheritance>
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