Definition of spherograph
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
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of spherograph
sphaer- + -graph
Seen and Heard
What made you want to look up spherograph? Please tell us where you read or heard it (including the quote, if possible).