hyperbolic geometry

noun

, Geometry.

1. the branch of non-Euclidean geometry that replaces the parallel postulate of Euclidean geometry with the postulate that two distinct lines may be drawn parallel to a given line through a point not on the given line.

Word History and Origins

Origin of hyperbolic geometry¹

First recorded in 1870–75

Example Sentences

Riemann discovered elliptic metrical geometry, and Lobatchewsky hyperbolic geometry.

From Project Gutenberg