Signal

Signal, sig′nal, n. a sign for giving notice, generally at a distance: token: the notice given: any initial impulse.—v.t. and v.i. to make signals to: to convey by signals:—pr.p. sig′nalling; pa.t. and pa.p. sig′nalled.—adj. having a sign: remarkable: notable: eminent.—ns. Sig′nal-book, a book containing a system of signals; Sig′nal-box, -cab′in, &c., a small house in which railway-signals are worked: the alarm-box of a police or fire-alarm system; Sig′nal-code, a code or system of arbitrary signals, esp. at sea, by flags or lights; Sig′nal-fire, a fire used for a signal; Sig′nal-flag, a flag used in signalling, its colour, shape, markings, and combinations indicating various significations; Sig′nal-gun, a gun fired as a signal.—v.t. Sig′nalise, to make signal or eminent: to signal.—ns. Sig′nal-lamp, a lamp by which signals are made by glasses or slides of different colours, &c.; Sig′nalling, the means of transmitting intelligence to a greater or less distance by the agency of sight or hearing.—adv. Sig′nally.—ns. Sig′nalman, one who makes signals and who interprets those made; Sig′nalment, the act of communicating by signals: description by means of marks; Sig′nal-post, a pole on which movable flags, arms, lights, are displayed as signals; Sig′nal-ser′vice, the department in the army occupied with signalling. [Fr.,—L. signalis, signum.]