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See more synonyms for geometry on Thesaurus.com
noun, plural ge·om·e·tries.
  1. 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.
  2. any specific system of this that operates in accordance with a specific set of assumptions: Euclidean geometry.
  3. the study of this branch of mathematics.
  4. a book on this study, especially a textbook.
  5. the shape or form of a surface or solid.
  6. a design or arrangement of objects in simple rectilinear or curvilinear form.
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Origin of geometry

1300–50; Middle English < Latin geōmetria < Greek geōmetría. See geo-, -metry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for geometries

Historical Examples

  • For instance, we might know that in non-Euclidean geometries, parallels meet.

    The Civilization of Illiteracy

    Mihai Nadin

  • 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.

British Dictionary definitions for geometries


  1. the branch of mathematics concerned with the properties, relationships, and measurement of points, lines, curves, and surfacesSee also analytical geometry, non-Euclidean geometry
    1. any branch of geometry using a particular notation or set of assumptionsanalytical geometry
    2. any branch of geometry referring to a particular set of objectssolid geometry
  2. a shape, configuration, or arrangement
  3. arts the shape of a solid or a surface
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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

Word Origin and History for geometries



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).

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Online Etymology Dictionary, © 2010 Douglas Harper

geometries in Science


  1. The mathematical study of the properties, measurement, and relationships of points, lines, planes, surfaces, angles, and solids.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

geometries in Culture


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

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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.