sea navigation along rhumb lines.
Talk Like A Sailor: 9 Fascinating Nautical TermsIn sailing, a moonraker is a light square sail set at the top of the mast. But this term is also a demonym for people from Wiltshire, England.
Origin of rhumb sailing
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019