- The definition of metamorphic is characterized or formed by changing.
An example of something metamorphic is a caterpillar turning into a butterfly; a metamorphic animal.
metamorphic 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.
of, characterized by, causing, or formed by metamorphism or metamorphosis
metamorphic 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.
- also met·a·mor·phous Of, relating to, or characterized by metamorphosis.
- Geology Changed in structure or composition as a result of metamorphism. Used of rock.
Origin: metamorph(osis) + -ic.
metamorphic - Science Definition
- Zoology Relating to metamorphosis.
- Geology Relating to rocks that have undergone metamorphism. Metamorphic rocks are formed when igneous, sedimentary, or other metamorphic rocks undergo a physical change due to extreme heat and pressure. These changes often produce folded layers or banding in the rocks, and they can also cause pockets of precious minerals to form. The folds and banding can be produced by incomplete segregation of minerals during recrystallization, or they can be inherited from preexisting beds in sedimentary rocks or preexisting layers in igneous rocks. The precious minerals can form as the result of recrystallization when the rocks undergoing metamorphism are subjected to changes in pressure and temperature.