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pelorus
pe·lo·rus P0157600 (pə-lôr′əs)n. pl. After·rus·es A fixed compass card on which bearings relative to a ship's heading are taken.
[Probably named around 1854 by the applicants for the British patent on the device, after Latin Pelōrus and Greek Pelōros, the name of a skilled pilot whom Hannibal is said to have put to death in Messina for treachery (although Hannibal later realized the pilot's faithfulness and erected a monument to him there), probably a legendary name derived from Greek Pelōros, Pelōrias, ancient names of Messina, probably from pelōros, prodigious, monstrous (perhaps from the dangerous whirlpool, winds, and currents of the Strait of Messina ); see peloria.]pelorus (pɪˈlɔːrəs) n, pl -ruses (Navigation) a sighting device used in conjunction with a magnetic compass or a gyrocompass for measuring the relative bearings of observed points[of uncertain origin, perhaps from Latin Pelōrus a dangerous Sicilian promontory]pe•lo•rus (pəˈlɔr əs, -ˈloʊr-)
n., pl. -rus•es. a device for measuring in degrees the relative bearings of observed objects. [1850–55; perhaps < Latin Pelōrus, now Faro in Sicily, a cape which requires skill in navigation] Translations
pelorus
pelorus[pə′lȯr·əs] (navigation) A compass card suitably mounted and provided with vanes to permit observation of the true or relative bearings; it may not include a magnetic compass, in which case reference must be made to a local compass to give true or magnetic bearings. |