geometry

Definition

The branch of mathematics dealing with spatial relationships.

Etymology

From Middle English gemetry, geometrie, from Old French geometrie (modern French géométrie), from Latin geōmetria, from Ancient Greek γεωμετρία (geōmetría, “geometry, land-survey”), from γεωμέτρης (geōmétrēs, “geometer, land measurer”), from γῆ (gê, “earth, land, country”) + -μετρία (-metría, “measurement”), from μέτρον (métron, “a measure”). By surface analysis, geometer + -y or geo- + -metry. Doublet of gematria.

Example Sentences

• "ANY problem in geometry can easily be reduced to such terms that a knowledge of the lengths of certain straight lines is sufficient for its construction."
• "1975 [Addison-Wesley], Eugene F. Krause, Taxicab Geometry, 1986, Dover, page 64, Entire new geometries are also suggested by real-world cities."
• "Finite geometries were developed in the late nineteenth century, in part to demonstrate and test the axiomatic properties of completeness, consistency, and independence."

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