- the branch of mathematics that deals with the deduction of the properties, measurement, and relationships of points, lines, angles, and figures in space from their defining conditions by means of certain assumed properties of space.
- any specific system of this that operates in accordance with a specific set of assumptions: Euclidean geometry.
- the study of this branch of mathematics.
- a book on this study, especially a textbook.
- the shape or form of a surface or solid.
- a design or arrangement of objects in simple rectilinear or curvilinear form.
Origin of geometry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for geometries
For instance, we might know that in non-Euclidean geometries, parallels meet.The Civilization of Illiteracy
This is the first problem that a student meets in most American geometries.The Teaching of Geometry
David Eugene Smith
The real criterion then of all geometries is neither truth, conformability nor necessity, but consistency and convenience.The Mystery of Space
Robert T. Browne
The number of geometries compatible with these premises will be limited.
- the branch of mathematics concerned with the properties, relationships, and measurement of points, lines, curves, and surfacesSee also analytical geometry, non-Euclidean geometry
- any branch of geometry using a particular notation or set of assumptionsanalytical geometry
- any branch of geometry referring to a particular set of objectssolid geometry
- a shape, configuration, or arrangement
- arts the shape of a solid or a surface
C14: from Latin geōmetria, from Greek, from geōmetrein to measure the land
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for geometries
Online Etymology Dictionary, © 2010 Douglas Harper
- The mathematical study of the properties, measurement, and relationships of points, lines, planes, surfaces, angles, and solids.
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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.