epistasis


epis·ta·sis

noun \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

Origin of EPISTASIS

New Latin, from Greek, act of stopping, from ephistanai to stop, from epi- + histanai to cause to stand — more at stand
First Known Use: circa 1917

epis·ta·sis

noun \i-ˈpis-tə-səs\   (Medical Dictionary)
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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