(n): a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone
(n): a pure flat white with little reflectance
(n): the quality or state of the achromatic color of greatest lightness (bearing the least resemblance to black)
(n): 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
(n): a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
(n): a drug or chemical substance whose possession and use are controlled by law
(n): 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
(n): an implement that is used to write
(v): write, draw, or trace with chalk
(v): represent by making a drawing of, as with a pencil, chalk, etc. on a surface
Because I was compelled to.