amphibolite- a metamorphic rock composed chiefly of amphibole and plagioclase rock,stone- material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries" ...
Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components. The preexisti
The meaning of METAMORPHIC is of or relating to metamorphosis. How to use metamorphic in a sentence.
Metamorphic rocks are rocks formed from other types of existing rock due to changes in heat or pressure. Learn about the definition and examples of metamorphic rocks and discover facts about how these rocks are formed. What Are Metamorphic Rocks? Rocks are divided into three main categories: ig...
: of, relating to, or produced by pyrometamorphism pyrometamorphic changes in sedimentary rock Word History Etymology pyrometamorphism + -ic Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster...
Geology.a change in the structure or constitution of a rock due to natural agencies, as pressure and heat, especially when the rock becomes harder and more completely crystalline. Archaic.metamorphosis. Discover More Word History and Origins ...
Rock can consist of a single mineral or of several minerals that are either tightly compacted or held together by a cement-like mineral matrix. The three main types of rock are igneous, sedimentary, and metamorphic. 2. A fairly small piece of such material; a stone. The American Heritage...
Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are
From Longman Dictionary of Contemporary Englishmet‧a‧mor‧phic /ˌmetəˈmɔːfɪk $ -ˈmɔːr-/ adjective technical metamorphic rock is formed by the continuous effects of pressure, heat, or water This metamorphic rock has been compressed for millions of years....
1 : composed of or separable into layers a foliated rock 2 : ornamented with foils or a leaf design Word History First Known Use 1650, in the meaning defined at sense 1 Time Traveler The first known use of foliated was in 1650 See more words from the same year ...