METAMORPHIC ROCK

Pronunciation (US): (GB):

Meaning:

Rock altered by pressure and heat

Classified under:

Nouns denoting substances

Hypernyms ("metamorphic rock" is a kind of...):

rock; stone (material consisting of the aggregate of minerals like those making up the Earth's crust)

Hyponyms (each of the following is a kind of "metamorphic rock"):

amphibolite (a metamorphic rock composed chiefly of amphibole and plagioclase)

marlite; marlstone (metamorphic rock with approximately the same composition as marl)

hornfels; hornstone (a fine-grained metamorphic rock formed by the action of heat on clay rocks)

gneiss (a laminated metamorphic rock similar to granite)

schist (any metamorphic rock that can be split into thin layers)