Definition of rock

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Rock (v. t.) To cause to sway backward and forward, as a body resting on a support beneath; as, to rock a cradle or chair; to cause to vibrate; to cause to reel or totter..

Lern More About Rock

Tridymite :: Tridymite (n.) Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks..
Cradle :: Cradle (n.) A tool used in mezzotint engraving, which, by a rocking motion, raises burrs on the surface of the plate, so preparing the ground..
Variety :: Variety (n.) Something varying or differing from others of the same general kind; one of a number of things that are akin; a sort; as, varieties of wood, land, rocks, etc..
Sorgne :: Sorgne (n.) The three-beared rocking, or whistlefish..
Jack :: Jack (n.) A wooden wedge for separating rocks rent by blasting.
Epizootic :: Epizootic (a.) Containing fossil remains; -- said of rocks, formations, mountains, and the like..
Steingale :: Steinbock (n.) A small South African antelope (Nanotragus tragulus) which frequents dry, rocky districts; -- called also steenbok..
Steep-down :: Steep (n.) A precipitous place, hill, mountain, rock, or ascent; any elevated object sloping with a large angle to the plane of the horizon; a precipice..
Shelf :: Shelf (v. i.) A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships..
Rendrock :: Rendrock (n.) A kind of dynamite used in blasting.
Attle :: Attle (n.) Rubbish or refuse consisting of broken rock containing little or no ore.
Niagara Period :: Niagara period () A subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geology..
Euritte :: Euritte (n.) A compact feldspathic rock; felsite. See Felsite.
Amygdaloid :: Amygdaloid (n.) A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava..
Skyrocket :: Skyrocket (n.) A rocket that ascends high and burns as it flies; a species of fireworks.
Rocker :: Rocker (n.) Any implement or machine working with a rocking motion, as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water..
Scorpaenoid :: Scorpaenoid (a.) Of or pertaining to the family Scorpaenidae, which includes the scorpene, the rosefish, the California rockfishes, and many other food fishes. [Written also scorpaenid.] See Illust. under Rockfish..
Syenitic :: Syenite (n.) A granular, crystalline, ingeous rock composed of orthoclase and hornblende, the latter often replaced or accompanied by pyroxene or mica. Syenite sometimes contains nephelite (elaeolite) or leucite, and is then called nephelite (elaeolite) syenite or leucite syenite..
Stalactites :: Stalactite (n.) In an extended sense, any mineral or rock of similar form and origin; as, a stalactite of lava..
Rider :: Rider (n.) Rock material in a vein of ore, dividing it..
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