noun
hyperbolic geometry
A branch of non-Euclidean geometry dealing with spaces of constant negative curvature. Technical term used in mathematics.
双曲幾何学では、平行線が無数に存在する。
In hyperbolic geometry, there are infinitely many parallel lines.
非ユークリッド幾何学 is the broader category of non-Euclidean geometry, which includes hyperbolic geometry as one type.
ユークリッド幾何学 is Euclidean geometry, the standard geometry of flat space, contrasting with hyperbolic geometry.
Compound of 双曲 (hyperbolic) and 幾何学 (geometry). The term is a direct translation of the English 'hyperbolic geometry'.