Ultrabasic Rock

Science / Geology / Ultrabasic Rock: An igneous rock with a very low silica content and rich in minerals such as hypersthene, augite and olivine. These rocks are also known as ultramafic rocks.

Other Words for Rock

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

Intermediate Rock

Science / Geology / Intermediate Rock: An igneous rock that has an intermediate silica content. Examples are syenite and diorite. Also see entries for acidic, basic and ultrabasic rocks. MORE

Acidic Rock

Science / Geology / Acidic Rock: An igneous rock that has a relatively high silica content. Examples are granite and rhyolite. Also see entries for basic, intermediate and ultrabasic rocks. MORE

Rocket

Entertainment / Bowling / Rocket: A ball thrown with extra speed; see also bb and bullet. MORE

Rockered Blades

Entertainment / Ice Hockey / Rockered Blades: Used by professional ice hockey skaters; the gentle curve in a very sharp blade of an ice skate produced by rounding the toe and heel of the blade to make it easier for hockey players to turn quickly. MORE

Rocketsonde

Science / Weather / Rocketsonde: A type of radiosonde that is shot into the atmosphere by a rocket, allowing it to collect data during its parachute descent from a higher position in the atmosphere than a balloon could reach. MORE

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