Science / Geology / Carbonate Rock: A rock made up primarily of carbonate minerals (minerals containing the CO3 anionic structure). Limestone (made up primarily of calicite - CaCO3) and dolostone (made up primarily of dolomite - CaMg (CO3)2 are the most common examples.
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Rock Noun Synonyms: stone, boulder
Rock Adjective Synonyms: crag, tor, escarpment, scarp, outcrop, outcropping
Science / Geology / Rock Salt: A chemical sedimentary rock that forms from the evaporation of ocean or saline lake waters. It is also known by the mineral name 'halite'. It is rarely found at Earth's surface, except in areas of ver MORE
Science / Geology / Rock Glacier: A mass of rock material, cemented together by ice, that flows down a slope under the force of gravity much like the motion of a glacier. MORE
Life Style / Painting / Rocker: A broad-ended tool with a sharp-toothed curved base which is used to ground a mezzotint plate. It is so called because it is applied with a rocking motion. MORE
Technology / Motorcycle / Rocker Arm: A centrally pivoted lever that transmits the motion of the camshaft to open and close the valves. MORE