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American Dictionary of the English Language

Webster's Dictionary 1828

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Chalk


CHALK, noun A well known calcarious earth, of an opake white color, soft and admitting no polish. It contains a large portion of carbonic acid, and is a subspecies of carbonate of lime. It is used as an absorbent and anti-acid.

Cleaveland. Nicholson. Kirwan. Aikin.

Black-chalk is a species of earth used by painters for drawing on blue paper.

Red-chalk is an indurated clayey ocher used by painters and artificers.

CHALK, verb transitive

1. To rub with chalk; to mark with chalk

2. To manure with chalk as land.

3. From the use of chalk in marking lines, the phrase to chalk out is used to signify, to lay out, draw out or describe; as, to chalk out a plan of proceeding.