# geometry

[ jee-om-i-tree ]

/ dʒiˈɒm ɪ tri /

### noun, plural ge·om·e·tries.

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.

## RELATED CONTENT

Why Do Lowercase Letters Look Very Different Than Uppercase Letters?Take a moment and open the last email you wrote. It’s okay. We’ll wait. Now imagine if you had to write it out on paper, not with a ballpoint pen, but with a pen that you had to dip into a bowl of ink every few words. And make sure not to drip any ink on that expensive parchment. Is your wrist hurting yet? Medieval …

## RELATED WORDS

## Nearby words

geometrician, geometricize, geometrics, geometrid, geometrize, geometry, geomorphic, geomorphology, geonavigation, geonim, geophagia

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Examples from the Web for geometry

## British Dictionary definitions for geometry

## geometry

/ (dʒɪˈɒmɪtrɪ) /

### noun

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

## Word Origin for geometry

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 geometry

## 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

## Science definitions for geometry

## geometry

[ jē-ŏm′ĭ-trē ]

The mathematical study of the properties, measurement, and relationships of points, lines, planes, surfaces, angles, and solids.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## Culture definitions for geometry

## geometry

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 Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.