[ ep-i-juh-net-iks ]

noun(used with a singular verb)
  1. Genetics. the study of the process by which genetic information is translated into the substance and behavior of an organism: specifically, the study of the way in which the expression of heritable traits is modified by environmental influences or other mechanisms without a change to the DNA sequence.

Origin of epigenetics

Coined in 1942 by English biologist Conrad H. Waddington (1905–75); blend of epigenesis and genetics

Words Nearby epigenetics

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use epigenetics in a sentence

British Dictionary definitions for epigenetics


/ (ˌɛpɪdʒɪˈnɛtɪks) /

noun(functioning as sing)
  1. the study of heritable changes that occur without a change in the DNA sequence

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for epigenetics


[ ĕp′ĭ-jə-nĕtĭks ]

  1. The study of heritable changes in gene expression caused by factors such as DNA methylation rather than by a change in the sequence of base pairs in DNA itself.

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