# epigenesis

> English word · Noun

## Definitions
1. The theory that an organism develops by differentiation from an unstructured egg rather than by simple enlarging of something preformed.
2. Changes in the mineral content of rock after its formation.

## Etymology
From epi- + -genesis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/epigenesis