Search Result for "epistasis": 
Wordnet 3.0

NOUN (1)

1. the suppression of a gene by the effect of an unrelated gene;
[syn: hypostasis, epistasis]



WordNet (r) 3.0 (2006):

epistasis
    n 1: the suppression of a gene by the effect of an unrelated
         gene [syn: hypostasis, epistasis]