n. [ Gr. &unr_; down + &unr_; serving to purge. See Cathartic. ] (Med.) A remedy that purges by alvine discharges. [ 1913 Webster ]

a. [ L. Catonionus. ] Of, pertaining to, or resembling, the stern old Roman, Cato the Censor; severe; inflexible. [ 1913 Webster ]

{ } a. [ Gr. &unr_;. See Catopter. ] Of or pertaining to catoptrics; produced by reflection. [ 1913 Webster ]

Catoptric light, a light in which the rays are concentrated by reflectors into a beam visible at a distance. [ 1913 Webster ]

n. [ Cf. F. catoptrique. See Catropric. ] (Physics) That part of optics which explains the properties and phenomena of reflected light, and particularly that which is reflected from mirrors or polished bodies; -- formerly called anacamptics. [ 1913 Webster ]

n. [ Gr. &unr_; mirror + -mancy. See Catopter. ] (Antiq.) A species of divination, which was performed by letting down a mirror into water, for a sick person to look at his face in it. If his countenance appeared distorted and ghastly, it was an ill omen; if fresh and healthy, it was favorable. [ 1913 Webster ]

n. [ Obs. ] See Catopter. [ 1913 Webster ]

{ } n. [ Gr. &unr_; mirror, fr. &unr_; visible. ] A reflecting optical glass or instrument; a mirror. [ Obs. ] [ 1913 Webster ]