- Chalk
- Chalk Chalk (ch[add]k), n. [AS. cealc lime, from L. calx
limestone. See {Calz}, and {Cawk}.]
1. (Min.) A soft, earthy substance, of a white, grayish, or
yellowish white color, consisting of calcium carbonate,
and having the same composition as common limestone.
[1913 Webster]
2. (Fine Arts) Finely prepared chalk, used as a drawing implement; also, by extension, a compound, as of clay and black lead, or the like, used in the same manner. See {Crayon}. [1913 Webster]
{Black chalk}, a mineral of a bluish color, of a slaty texture, and soiling the fingers when handled; a variety of argillaceous slate.
{By a long chalk}, by a long way; by many degrees. [Slang] --Lowell.
{Chalk drawing} (Fine Arts), a drawing made with crayons. See {Crayon}.
{Chalk formation}. See {Cretaceous formation}, under {Cretaceous}.
{Chalk line}, a cord rubbed with chalk, used for making straight lines on boards or other material, as a guide in cutting or in arranging work.
{Chalk mixture}, a preparation of chalk, cinnamon, and sugar in gum water, much used in diarrheal affection, esp. of infants.
{Chalk period}. (Geol.) See {Cretaceous period}, under {Cretaceous}.
{Chalk pit}, a pit in which chalk is dug.
{Drawing chalk}. See {Crayon}, n., 1.
{French chalk}, steatite or soapstone, a soft magnesian mineral.
{Red chalk}, an indurated clayey ocher containing iron, and used by painters and artificers; reddle. [1913 Webster]
The Collaborative International Dictionary of English. 2000.