spherograph

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noun

An instrument for facilitating the practical use of spherics in navigation and astronomy, constructed of two cardboards containing various circles, turning upon each other in such a manner that any possible spherical triangle may be readily found, and the measures of the parts read off.

Scrabble 22
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Meanings

nounspherograph (plural spherographs)

plural spherographs

  1. An instrument for facilitating the practical use of spherics in navigation and astronomy, constructed of two cardboards containing various circles, turning upon each other in such a manner that any possible spherical triangle may be readily found, and the measures of the parts read off.

Origin

From sphero- + -graph.

Full word history & related roots →
Cite this entry
APA

spherograph. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/spherograph

MLA

“spherograph.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/spherograph. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “spherograph,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/spherograph.

Source: spherograph on Wiktionary, CC BY-SA 4.0.