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

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 Literature

I taught a topology and geometry class this semester, and one of the topics we covered was spherical geometry.

From Scientific American

"What we're seeing is a clever trick of spherical geometry. For structures on this scale, a polygon with 120-degree angles at the corners actually has four sides instead of six," explained Prof Andrews-Hanna.

From BBC

The spherical geometry of oil silos provides optimal orientation for harvesting sunlight year-round.

From Forbes