Epistasis

//ɪˈpɪstəsɪs// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The modification of the expression of a gene by another unrelated one. countable, uncountable
  2. 2
    the suppression of a gene by the effect of an unrelated gene wordnet

Synonyms

All synonyms
hypostasishypostasis

Etymology

Borrowed from Ancient Greek ἐπίστασις (epístasis, “stopping”), from ἐφίστημι (ephístēmi, “stop”), from ἐφ- (eph-) + ἵστημι (hístēmi, “make to stand”). The use in genetics was coined by English biologist William Bateson in 1909 in his book Mendel's Principles of Heredity.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.