# geometry

[jee-om-i-tree]

- 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.

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## Origin of geometry^{}

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for geometries

### Historical Examples

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

The Civilization of IlliteracyMihai Nadin

#### This is the first problem that a student meets in most American geometries.

The Teaching of GeometryDavid Eugene Smith

#### The real criterion then of all geometries is neither truth, conformability nor necessity, but consistency and convenience.

The Mystery of SpaceRobert T. Browne

#### The number of geometries compatible with these premises will be limited.

# geometry

- 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

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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

# geometry

Online Etymology Dictionary, © 2010 Douglas Harper

# geometry

[jē-ŏm′ĭ-trē]

- 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.

# geometry

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.