spherical geometry

American  

noun

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

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spherical geometry British  

noun

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

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spherical geometry Scientific  

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

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Etymology

Origin of spherical geometry

First recorded in 1720–30

Example Sentences

Two main possibilities then arise: one is spherical geometry, in which parallel lines can eventually touch, in the way that Earth’s meridians cross at the poles; the other is hyperbolic geometry, in which they diverge.

From Nature • Mar. 20, 2017

This kind of geometry is referred to as spherical geometry.

From Textbooks • Oct. 13, 2016

It undertook to explain algebra, trigonometry, spherical geometry, logarithms, graphs, calculus.

From Time Magazine Archive

It took three years to adapt Utzon's spherical geometry to actual construction, using computers to ensure that 170-ft. ribs weighing 80 tons would fit to a fraction of an inch.

From Time Magazine Archive

Some clusters have their galaxies arranged in an unambiguously spherical geometry; they are composed chiefly of ellipticals, often dominated by one giant elliptical, the presumptive galactic cannibal.

From "Cosmos" by Carl Sagan