COALSACK
Coal"sack`, n. [Coal + 2d sack.] (Astron.)
Defn: Any one of the spaces in the Milky Way which are very black, owing to the nearly complete absence of stars; esp., the large space near the Southern Cross sometimes called the Black Magellanic Cloud.
COAL TAR
Coal" tar`.
Defn: A thick, black, tarry liquid, obtained by the distillation of bituminous coal in the manufacture of illuminating gas; used for making printer's ink, black varnish, etc. It is a complex mixture from which many substances have been obtained, especially hydrocarbons of the benzene or aromatic series.
Note: Among its important ingredients are benzene, aniline, phenol, naphtalene, anthracene, etc., which are respectively typical of many dye stuffs, as the aniline dyes, the phthaleïns, indigo, alizarin, and many flavoring extracts whose artificial production is a matter of great commercial importance.
COAL-WHIPPER
Coal"-whip`per, n.
Defn: One who raises coal out of the hold of a ship. [Eng.] Dickens.
COAL WORKS
Coal" works.
Defn: A place where coal is dug, including the machinery for raising the coal.
COALY
Coal"y, a. Etym: [From Coal, n.]