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[jee-om-i-tree] /dʒiˈɒm ɪ tri/
noun, plural geometries.
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
1300-50; Middle English < Latin geōmetria < Greek geōmetría. See geo-, -metry Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for geometry


the branch of mathematics concerned with the properties, relationships, and measurement of points, lines, curves, and surfaces See also analytical geometry, non-Euclidean geometry
  1. any branch of geometry using a particular notation or set of assumptions: analytical geometry
  2. any branch of geometry referring to a particular set of objects: solid geometry
a shape, configuration, or arrangement
(arts) the shape of a solid or a surface
Word Origin
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
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Word Origin and History for geometry

early 14c., from Old French géométrie (12c.), from Latin geometria, from Greek geometria "measurement of earth or land; geometry," from comb. form of ge "earth, land" (see Gaia) + -metria (see -metry).

Online Etymology Dictionary, © 2010 Douglas Harper
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geometry in Science
The mathematical study of the properties, measurement, and relationships of points, lines, planes, surfaces, angles, and solids.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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geometry in Culture

geometry definition

The branch of mathematics that treats the properties, measurement, and relations of points, lines, angles, surfaces, and solids. (See Euclid and plane geometry.)

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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