spherical geometry

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noun

the branch of geometry that deals with figures on spherical surfaces.

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Origin of spherical geometry

First recorded in 1720–30

Words nearby spherical geometry

spherical angle, spherical astronomy, spherical coordinate, spherical coordinates, spherical excess, spherical geometry, spherical polygon, spherical sailing, spherical triangle, spherical trigonometry, sphericity

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use spherical geometry in a sentence

Well, Riemann's geometry is spherical geometry extended to three dimensions.
The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method|Henri Poincar
The geometry of these surfaces reduces itself therefore to the spherical geometry, which is that of Riemann.
The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method|Henri Poincar
If we call the disc-shadows rigid figures, then spherical geometry holds good on the plane E with respect to these rigid figures.
Sidelights on Relativity|Albert Einstein
They founded and largely constructed both plane and spherical geometry on the lines which best suit our practical intelligence.
Progress and History|Various

Indeed, it is very easily calculated by means of spherical geometry, what a great extent of the earth's area I beheld.
The Works of Edgar Allan Poe|Edgar Allan Poe

British Dictionary definitions for spherical geometry

spherical geometry

noun

the branch of geometry concerned with the properties of figures formed on the surface of a sphere

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for spherical geometry

spherical geometry

The geometry of circles, angles, and figures on the surface of a sphere.