Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of rock is as below...

Limestone :: Limestone (n.) A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble..

Silicated :: Silicated (a.) Combined or impregnated with silicon or silica; as, silicated hydrogen; silicated rocks..

Tephrite :: Tephrite (n.) An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both..

Talus :: Talus (n.) A sloping heap of fragments of rock lying at the foot of a precipice.

Eruptive :: Eruptive (a.) Produced by eruption; as, eruptive rocks, such as the igneous or volcanic..

Titubation :: Titubation (n.) The act of stumbling, rocking, or rolling; a reeling..

Disfrock :: Disfrock (v. t.) To unfrock.

Greisen :: Greisen (n.) A crystalline rock consisting of quarts and mica, common in the tin regions of Cornwall and Saxony..

Fragmental :: Fragmental (n.) A fragmentary rock.

Diabase :: Diabase (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone..

Reef :: Reef (n.) A large vein of auriferous quartz; -- so called in Australia. Hence, any body of rock yielding valuable ore..

Gtraystone :: Gtraystone (n.) A grayish or greenish compact rock, composed of feldspar and augite, and allied to basalt..

Crocker :: Crocker (n.) A potter.

Cradle :: Cradle (n.) A machine on rockers, used in washing out auriferous earth; -- also called a rocker..

Belonite :: Belonite (n.) Minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.

Azoic :: Azoic (a.) Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; as, the azoic. rocks..

Petrology :: Petrology (n.) The department of science which is concerned with the mineralogical and chemical composition of rocks, and with their classification: lithology..

Yellowfish :: Yellowfish (n.) A rock trout (Pleurogrammus monopterygius) found on the coast of Alaska; -- called also striped fish, and Atka mackerel..

Yellowtail :: Yellowtail (n.) A California rockfish (Sebastodes flavidus).

Paleechinoidea :: Paleechinoidea (n. pl.) An extinct order of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palaeechini.

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