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 chalk is as below...

Sarsen :: Sarsen (n.) One of the large sandstone blocks scattered over the English chalk downs; -- called also sarsen stone, and Druid stone..

Portland Cement :: Portland cement () A cement having the color of the Portland stone of England, made by calcining an artificial mixture of carbonate of lime and clay, or sometimes certain natural limestones or chalky clays. It contains a large proportion of clay, and hardens under water..

Blackboard :: Blackboard (n.) A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools..

Chalky :: Chalky (a.) Consisting of, or resembling, chalk; containing chalk; as, a chalky cliff; a chalky taste..

Neocomian :: Neocomian (n.) A term applied to the lowest deposits of the Cretaceous or chalk formation of Europe, being the lower greensand..

Glauconite :: Glauconite (n.) The green mineral characteristic of the greensand of the chalk and other formations. It is a hydrous silicate of iron and potash. See Greensand.

Line :: Line (n.) A more or less threadlike mark of pen, pencil, or graver; any long mark; as, a chalk line..

Geophagist :: Geophagist (n.) One who eats earth, as dirt, clay, chalk, etc..

Disintegrate :: Disintegrate (v. i.) To decompose into integrant parts; as, chalk rapidly disintegrates..

Cretaceously :: Cretaceously (adv.) In a chalky manner; as chalk.

Chalkcutter :: Chalkcutter (n.) A man who digs chalk.

Chalking :: Chalking (p. pr. & vb. n.) of Chal.

Pica :: Pica (n.) A vitiated appetite that craves what is unfit for food, as chalk, ashes, coal, etc.; chthonophagia..

Chalk :: Chalk (v. t.) To rub or mark with chalk.

Rotalite :: Rotalite (n.) Any fossil foraminifer of the genus Rotalia, abundant in the chalk formation. See Illust. under Rhizopod..

Graphotype :: Graphotype (n.) A process for producing a design upon a surface in relief so that it can be printed from. Prepared chalk or oxide of zinc is pressed upon a smooth plate by a hydraulic press, and the design is drawn upon this in a peculiar ink which hardens the surface wherever it is applied. The surface is then carefully rubbed or brushed, leaving the lines in relief..

Chalked :: Chalked (imp. & p. p.) of Chal.

Micraster :: Micraster (n.) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows..

Chalk :: Chalk (v. t.) To make white, as with chalk; to make pale; to bleach..

Calcite :: Calcite (n.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar..

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