epigenesis[ep′i jen′ə sis]
epigenesis definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- Biol. the theory that the embryo, influenced by its internal and external environment, develops progressively by stages, forming structures that were not originally present in the egg
- Geol. a type of metamorphism in which the mineral content of a rock changes as a result of external influences
- the appearing of secondary symptoms
- a secondary symptom
Origin: ModL: see epi- and amp; -genesis
epigenesis definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- Biology The theory that an individual is developed by successive differentiation of an unstructured egg rather than by a simple enlarging of a preformed entity.
- Geology Change in the mineral content of a rock because of outside influences.
- epˌi·ge·netˈic adjective
epigenesis - Medical Definition
The theory that an individual is developed by successive differentiation of an unstructured egg rather than by a simple enlarging of a preformed entity.
- epigenetic adjective