pelorus

[puh-lawr-uh s, -lohr-]

Origin of pelorus

1850–55; perhaps < Latin Pelōrus, now Faro in Sicily, a cape which requires skill in navigation
Also called dumb compass.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of pelorus


British Dictionary definitions for pelorus

pelorus

noun plural -ruses
  1. 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
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