Pyroclastic Rock

Science / Geology / Pyroclastic Rock: A rock formed when small particles of magma are blown from the vent of a volcano by escaping gas.

Other Words for Rock

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

Science / Geology / Pyroclastic Texture: The unsorted, angular, and un-rounded texture of the fragments in a pyroclastic rock. MORE

Rocker Step

Entertainment / Basketball / Rocker Step: An offensive move consisting of a jab step followed by a step backward; the player can either shoot or drive, depending on the movement of the defender. 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

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

Rocket

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

Rocket Scientist

Business / Finance / Rocket Scientist: An employee of an investment firm (often having a Ph.D. in physics or mathematics) that works on highly mathematic models of derivative pricing. MORE

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