epigenetic

American  

[ep-i-juh-net-ik] / ˌɛp ɪ dʒəˈnɛt ɪk /

adjective

1. Biology. of or relating to epigenesis, or the successive differentiation of undifferentiated cells in an embryo.

2. Genetics. noting or pertaining to epigenetics, specifically, the process by which the expression of genetic information is modified on a molecular level without a change to the DNA sequence.

   the epigenetic inheritance of longevity.

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epigenetic British  

/ ˌɛpɪdʒɪˈnɛtɪk /

adjective

1. of or relating to epigenesis

2. denoting processes by which heritable modifications in gene function occur without a change in the sequence of the DNA

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Other Word Forms

• epigenetically adverb

Etymology

Origin of epigenetic

epi- + genetic

Example Sentences

Feinberg and his colleagues previously reported in 2017 that the most common form of pancreatic cancer shows widespread epigenetic changes in primary tumors.

From Science Daily • Apr. 7, 2026

Chitwood has invested in a company working on epigenetic reprogramming, a process that aims to restore cells to a youthful state by pulling a specific combination of genetic levers.

From Slate • Mar. 30, 2026

Genetic and epigenetic changes can reactivate biological programs that are normally turned off after early development, ultimately driving tumor formation.

From Science Daily • Mar. 21, 2026

For one thing, genes themselves aren’t changed by epigenetic experiences; rather, certain pre-existing genes are turned on or off.

From The Wall Street Journal • Mar. 20, 2026

Now he explains candidly that he has been driven to the view that epigenetic development does not exist.

From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Hertwig, Oscar