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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
- riemannian of or relating to Riemann's non-Euclidean geometry
- euclid's postulate (mathematics) any of five axioms that are generally recognized as the basis for Euclidean geometry
- nikolai ivanovich lobachevsky Russian mathematician who independently discovered non-Euclidean geometry (1792-1856)
- elementary geometry (mathematics) geometry based on Euclid's axioms
- riemannian geometry (mathematics) a non-Euclidean geometry that regards space as like a sphere and a line as like a great circle
- euclidean axiom (mathematics) any of five axioms that are generally recognized as the basis for Euclidean geometry
- lobachevsky Russian mathematician who independently discovered non-Euclidean geometry (1792-1856)