[ puh-lawr-uh s, -lohr- ]
/ pəˈlɔr əs, -ˈloʊr- /

noun, plural pe·lo·rus·es. Navigation.

a device for measuring in degrees the relative bearings of observed objects.

Origin of pelorus

1850–55; perhaps < Latin Pelōrus, now Faro in Sicily, a cape which requires skill in navigation
Also called dumb compass. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for pelorus

British Dictionary definitions for pelorus

/ (pɪˈlɔːrəs) /

noun plural -ruses

a sighting device used in conjunction with a magnetic compass or a gyrocompass for measuring the relative bearings of observed points

Word Origin for pelorus

of uncertain origin, perhaps from Latin Pelōrus a dangerous Sicilian promontory
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012