| euclid | (n) Greek geometer (3rd century BC) |
| euclidean space | (n) a space in which Euclid's axioms and definitions apply; a metric space that is linear and finite-dimensional |
| euclidian | (adj) relating to geometry as developed by Euclid, Syn. euclidean, Example: Euclidian geometry |
| euclid's axiom | (n) (mathematics) any of five axioms that are generally recognized as the basis for Euclidean geometry, Syn. Euclid's postulate, Euclidean axiom |
| euclid's fifth axiom | (n) only one line can be drawn through a point parallel to another line, Syn. parallel axiom |
| euclid's first axiom | (n) a straight line can be drawn between any two points |
| euclid's fourth axiom | (n) all right angles are equal |
| euclid's second axiom | (n) any terminated straight line can be projected indefinitely |
| euclid's third axiom | (n) a circle with any radius can be drawn around any point |
| Euclid | n. A Greek geometer of the 3d century |
| Euclidian | n. Related to Euclid, or to the geometry of Euclid. [ 1913 Webster ]
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