Chlo"ro*form (?), n. [Chlorine + formyl, it having been regarded as a trichloride of this radical: cf. F. chloroforme, G. chloroform.] (Chem.) A colorless volatile liquid, CHCl₃, having an ethereal odor and a sweetish taste, formed by treating alcohol with chlorine and an alkali. It is a powerful solvent of wax, resin, etc., and is extensively used to produce anæsthesia in surgical operations; also externally, to alleviate pain.

Chlo"ro*form (?), v. t. [imp. & p. p. Chloroformed (?); p. pr. & vb. n. Chloroforming.] To treat with chloroform, or to place under its influence.