n. pl. ge·om·e·tries 1. a. The mathematics of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids. b. A system of geometry: Euclidean geometry. c. A geometry restricted to a class of problems or objects: solid geometry. d. A book on geometry. 2. a. Configuration; arrangement. b. A surface shape. 3. A physical arrangement suggesting geometric forms or lines. [Middle English geometrie, from Old French, from Latin geōmetria, from Greek geōmetriā, from geōmetrein, to measure land : geō-, geo- + metron, measure; see mē-2 in the Appendix of Indo-European roots.] ge·om′e·trician (jē-ŏm′ĭ-trĭshən, jē′ə-mĭ-), ge·ome·ter n. |
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