epistasis

e·pis·ta·sis  (-pst-ss)

n. pl. e·pis·ta·ses (-sz)

1. An interaction between nonallelic genes, especially an interaction in which one gene suppresses the expression of another.

2. A film that forms over the surface of a urine specimen.

3. The suppression of a bodily discharge or secretion.

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[Greek, stoppage, from epistanai, to stop, check : ep-, epi-, epi- + histanai, to place; see st- in Indo-European roots.]

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epi·static (p-sttk) adj.

Thesaurus

Noun

1.

epistasis - the suppression of a gene by the effect of an unrelated gene hypostasis biological process, organic process - a process occurring in living organisms