Meaning of chalk

Definition of chalk

(noun) a soft whitish calcite

a pure flat white with little reflectance

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

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

(verb) write, draw, or trace with chalk

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