EPIGENESIS
epigenesis
(noun) a geological change in the mineral content of rock after the rock has formed
Source: WordNet® 3.1
Etymology
Noun
epigenesis (countable and uncountable, plural epigeneses)
(biology) The theory that an organism develops by differentiation from an unstructured egg rather than by simple enlarging of something preformed.
(geology) Changes in the mineral content of rock after its formation.
Source: Wiktionary
Ep`i*gen"e*sis, n. Etym: [Pref. epi- + genesis.] (Biol.)
Definition: The theory of generation which holds that the germ is created
entirely new, not merely expanded, by the procreative power of the
parents. It is opposed to the theory of evolution, also to
syngenesis.
Source: Webster’s Unabridged Dictionary 1913 Edition