spherograph

noun

sphero·​graph
ˈsfirəˌgraf,
-fer-,
-grȧf
1
: two cardboards used especially in navigation and astronomy, containing various circles, and turning upon each other in such a manner that any possible spherical triangle may be readily found and the measure of the parts read off by inspection
2
: a disk ruled with meridians and parallels in stereographic projection for the solution of problems in spherics

Word History

Etymology

sphaer- + -graph

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Dictionary Entries Near spherograph

Cite this Entry

“Spherograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spherograph. Accessed 25 Jun. 2024.

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