Definition of rock

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Rock (n.) A large concreted mass of stony material; a large fixed stone or crag. See Stone.

Lern More About Rock

Nest :: Nest (n.) An aggregated mass of any ore or mineral, in an isolated state, within a rock..
Uralite :: Uralite (n.) Amphibole resulting from the alternation of pyroxene by paramorphism. It is not uncommon in massive eruptive rocks.
Flagstone :: Flagstone (n.) A flat stone used in paving, or any rock which will split into such stones. See Flag, a stone..
Archimedes :: Archimedes (n.) An extinct genus of Bryzoa characteristic of the subcarboniferous rocks. Its form is that of a screw.
Fragmentary :: Fragmentary (a.) Composed of the fragments of other rocks.
Tufa :: Tufa () A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria..
Stock :: Stock (n.) An irregular metalliferous mass filling a large cavity in a rock formation, as a stock of lead ore deposited in limestone..
Rock :: Rock (v. i.) To move or be moved backward and forward; to be violently agitated; to reel; to totter.
Magma :: Magma (n.) The glassy base of an eruptive rock.
Littorina :: Littorina (n.) A genus of small pectinibranch mollusks, having thick spiral shells, abundant between tides on nearly all rocky seacoasts. They feed on seaweeds. The common periwinkle is a well-known example. See Periwinkle..
Scree :: Scree (n.) A pebble; a stone; also, a heap of stones or rocky debris..
Laverock :: Laverock (n.) The lark.
Tridymite :: Tridymite (n.) Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks..
Rocky :: Rocky (a.) Like a rock; as, the rocky orb of a shield..
Metasomatism :: Metasomatism (n.) An alteration in a mineral or rock mass when involving a chemical change of the substance, as of chrysolite to serpentine; -- opposed to ordinary metamorphism, as implying simply a recrystallization..
Rockelay :: Rockelay (n.) Alt. of Rockla.
Strike :: Strike (v. i.) To run upon a rock or bank; to be stranded; as, the ship struck in the night..
Trachytoid :: Trachytoid (a.) Resembling trachyte; -- used to define the structure of certain rocks.
Andromeda :: Andromeda (n.) A genus of ericaceous flowering plants of northern climates, of which the original species was found growing on a rock surrounded by water..
Clastic :: Clastic (a.) Fragmental; made up of brok/ fragments; as, sandstone is a clastic rock..
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