definitions

metamorphic rock

Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.

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Nearby words

metameric nervous system, metamerism, metamict, metamorphic, metamorphic facies, metamorphic rock, metamorphism, metamorphopsia, metamorphose, metamorphoses, metamorphosis

Note

Examples are marble, which can be formed from limestone, and slate, which is formed from shale.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.