'Pelorus' definitions:

Definition of 'Pelorus'

From: GCIDE
  • Pelorus \Pe*lo"rus\, n. [After Pelorus, said to have been Hannibal's pilot when he left Italy.] (Navig.) An instrument similar to a mariner's compass, but without magnetic needles, and having two sight vanes by which bearings are taken, esp. such as cannot be taken by the compass. [Webster 1913 Suppl.]