Coal" tar` (?). 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.
&fist; Among its important ingredients are benzene, aniline, phenol, naphtalene, anthracene, etc., which are respectively typical of many dye stuffs, as the aniline dyes, the phthale´ns, indigo, alizarin, and many flavoring extracts whose artificial production is a matter of great commercial importance.
Coal"-whip`per (?), n. One who raises coal out of the hold of a ship. [Eng.] Dickens.
Coal" works (?). A place where coal is dug, including the machinery for raising the coal.
Coal"y (?), a. [From Coal, n.] Pertaining to, or resembling, coal; containing coal; of the nature of coal.
Coam"ings (?), n. pl. [Cf. Comb a crest.] (Naut.) Raised pieces of wood of iron around a hatchway, skylight, or other opening in the deck, to prevent water from running bellow; esp. the fore-and-aft pieces of a hatchway frame as distinguished from the transverse head ledges. [Written also combings.]
Co`an*nex" (?), v. t. To annex with something else.
Co`ap*ta"tion (?), n. [L. coaptatio, fr. coaptare to fit together; co- + aptare. See Aptate.] The adaptation or adjustment of parts to each other, as of a broken bone or dislocated joint.
{ Co*arct" (?), Co*arc"tate (?) }, v. t. [See Coarctate, a.] 1. To press together; to crowd; to straiten; to confine closely. [Obs.] Bacon.