astrocompass

noun
as·​tro·​compass
plural -s

Definition of astrocompass

: a device that by mechanically solving the astronomical triangle reveals the bearing of any recognized celestial body to a navigator and is used especially near the earth's magnetic pole where magnetic compasses are not reliable

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History and Etymology for astrocompass

astr- + compass

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Cite this Entry

“Astrocompass.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/astrocompass. Accessed 27 January 2020.

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