A soft, earthy substance, of a white, grayish, or yellowish white color, consisting of calcium carbonate, and having the same composition as common limestone.
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.
To rub or mark with chalk.
To manure with chalk, as land.
To make white, as with chalk; to make pale; to bleach.
To cool; to skim or stir.
A brewer's cooling vat; a keelfat.
A longitudinal timber, or series of timbers scarfed together, extending from stem to stern along the bottom of a vessel. It is the principal timber of the vessel, and, by means of the ribs attached on each side, supports the vessel's frame. In an iron vessel, a combination of plates supplies the place of the keel of a wooden ship. See Illust. of Keelson.
Fig.: The whole ship.
A barge or lighter, used on the Tyne for carrying coal from Newcastle; also, a barge load of coal, twenty-one tons, four cwt.
The two lowest petals of the corolla of a papilionaceous flower, united and inclosing the stamens and pistil; a carina. See Carina.
A projecting ridge along the middle of a flat or curved surface.
In a dirigible, a construction similar in form and use to a ship's keel; in an aëroplane, a fin or fixed surface employed to increase stability and to hold the machine to its course.
To traverse with a keel; to navigate.
To turn up the keel; to show the bottom.
