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nounGreek geometer (3rd century BC)
Definition that contains euclid
- euclidian relating to geometry as developed by Euclid
- riemann pioneer of non-Euclidean geometry (1826-1866)
- euclidean relating to geometry as developed by Euclid
- euclidean geometry (mathematics) geometry based on Euclid's axioms
- parabolic geometry (mathematics) geometry based on Euclid's axioms
- euclid's axiom (mathematics) any of five axioms that are generally recognized as the basis for Euclidean geometry
- hyperbolic geometry (mathematics) a non-Euclidean geometry in which the parallel axiom is replaced by the assumption that through any point in a plane there are two or more lines that do not intersect a given line in the plane
- euclidean space a space in which Euclid's axioms and definitions apply; a metric space that is linear and finite-dimensional
- bernhard riemann pioneer of non-Euclidean geometry (1826-1866)
- riemannian of or relating to Riemann's non-Euclidean geometry