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Definition of Chalk
1. Noun. A soft whitish calcite.
2. Verb. Write, draw, or trace with chalk.
3. Noun. A pure flat white with little reflectance.
4. Noun. An amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant.
Exact synonyms: Chicken Feed, Crank, Deoxyephedrine, Glass, Ice, Meth, Methamphetamine, Methamphetamine Hydrochloride, Methedrine, Shabu, Trash
Generic synonyms: Amphetamine, Pep Pill, Speed, Upper, Controlled Substance
Generic synonyms: Amphetamine, Pep Pill, Speed, Upper, Controlled Substance
5. Noun. A piece of calcite or a similar substance, usually in the shape of a crayon, that is used to write or draw on blackboards or other flat surfaces.
Specialized synonyms: Drawing Chalk, Tailor's Chalk
Generic synonyms: Writing Implement
Derivative terms: Chalky
Generic synonyms: Writing Implement
Derivative terms: Chalky
Definition of Chalk
1. n. A soft, earthy substance, of a white, grayish, or yellowish white color, consisting of calcium carbonate, and having the same composition as common limestone.
2. v. t. To rub or mark with chalk.
Definition of Chalk
1. to mark with chalk (a soft limestone) [v -ED, -ING, -S]
Medical Definition of Chalk
1. Synonym: calcium carbonate. Origin: L. Calx (05 Mar 2000)