epistasis

American  

[ih-pis-tuh-sis] / ɪˈpɪs tə sɪs /

noun

epistases plural

1. Genetics. a form of interaction between nonallelic genes in which one combination of such genes has a dominant effect over other combinations.

2. Medicine/Medical.

   1. the stoppage of a secretion or discharge.

   2. a scum that forms on a urine specimen upon standing.

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epistasis British  

/ ɪˈpɪstəsɪs, ˌɛpɪˈstætɪk /

noun

1. obsolete scum on the surface of a liquid, esp on an old specimen of urine

2. med the arrest or checking of a bodily discharge, esp bleeding

3. Also called: hypostasis.  genetics the suppression by a gene of the effect of another gene that is not its allele

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Other Word Forms

Derived Forms

• epistatic
  adjective

Inflected Forms

Nouns

• epistases
  plural

Etymology

Origin of epistasis

First recorded in 1915–20, epistasis is from the Greek word epístasis stopping, stoppage. See epi-, stasis

Example Sentences

Epistasis can also occur when a dominant allele masks expression at a separate gene.

From Textbooks • Jun. 9, 2022

The Latin runs: Etenim, ut nostrorum illa fuit Epistasis turbulenta, sic nostrorum haec evasit divina Catastrophe.

From Ten Reasons Proposed to His Adversaries for Disputation in the Name of the Faith and Presented to the Illustrious Members of Our Universities by Campion, Edmund

Etenim, ut nostrorum illa fuit Epistasis turbulenta, sic nostrorum haec evasit divina Catastrophe.

From Ten Reasons Proposed to His Adversaries for Disputation in the Name of the Faith and Presented to the Illustrious Members of Our Universities by Campion, Edmund