Basic Rock

Science / Geology / Basic Rock: An igneous rock that has a relatively low silica content. Examples are gabbro and basalt. Also see entries for acidic, intermediate and ultrabasic rocks.
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Other Words for Basic

Basic Adjective Synonyms: fundamental, essential, key, elementary, underlying, prime, primary, root, principal, central, focal, vital
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Other Words for Rock

Rock Adjective Synonyms: crag, tor, escarpment, scarp, outcrop, outcropping
Rock Noun Synonyms: stone, boulder
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Rock Flour

Science / Geology / Rock Flour: A glacial sediment of extremely fine (silt-and clay-size) ground rock formed by abrasion of rocks at the base of the glacier. MORE

Rock Cycle

Science / Geology / Rock Cycle: The geologic cycle, with emphasis on the rocks produced: sedimentary rocks are metamorphosed to metamorphic rocks, or melted to create igneous rocks, and all rocks may be uplifted and eroded to make s MORE

Rock Band

Entertainment / Music / Rock Band: Popular music ensemble that depends on amplified strings, percussion, and electronically generated sounds. MORE

Rock Glacier

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

Rock Salt

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

Rocker Arm

Technology / Motorcycle / Rocker Arm: A centrally pivoted lever that transmits the motion of the camshaft to open and close the valves. MORE