Epimutation
/[ɛpɪmjuˈteɪʃən]/ noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A heritable change in gene expression that does not affect the actual base pair sequence of DNA.
"The first sign of cellular abnormality in some tumors is an epimutation—a change in heritable chromatin marks, such as an increase or decrease in the density of DNA methylation."
Example
More examples"The first sign of cellular abnormality in some tumors is an epimutation—a change in heritable chromatin marks, such as an increase or decrease in the density of DNA methylation."
Etymology
From epi- + mutation; compare epigenetic.
Related phrases
More for "epimutation"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.