non-euclidean geometry

1. 1.

   (mathematics) geometry based on axioms different from Euclid's

   “non-Euclidean geometries discard or replace one or more of the Euclidean axioms”

   Broadergeometry

   Narrowerhyperbolic geometryelliptic geometry

   mathematics

Questions about non-euclidean geometry

What does non-euclidean geometry mean?

non-euclidean geometry means "(mathematics) geometry based on axioms different from Euclid's".

Is non-euclidean geometry a common word?

non-euclidean geometry is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.