ge·om·e·try | \jē-ˈä-mə-trē \
plural geometries

Definition of geometry 

1a : a branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids broadly : the study of properties of given elements that remain invariant under specified transformations

b : a particular type or system of geometry Euclidean geometry

2a : configuration

b : surface shape (as of a mechanical part or a crystal)

3 : an arrangement of objects or parts that suggests geometric figures the geometry of neoclassical architecture

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Examples of geometry in a Sentence

the geometry of Sydney's famed opera house is suggestive of some modernistic sailing ship

Recent Examples on the Web

Reducing detail on shadows, geometry, and textures will free up the most frames, as does a sheer resolution reduction. Sam Machkovech, Ars Technica, "Final Fantasy XV for Windows should have been a mess, but it’s the opposite," 7 Mar. 2018 Their baffling geometry can trick the human eye as well as a radar array. Kyle Mizokami, Popular Mechanics, "B-52 Bombers Could Quadruple Their Wing Bomb Loads," 25 June 2018 While those types of information are mutable — even Social Security numbers can be changed — biometric data for retinas, fingerprints, hands, face geometry and blood samples are unique identifiers. Helenregan, Fortune, "Facebook's Photo-Scanning Suit Becomes a Multibillion-Dollar Threat," 16 Apr. 2018 Moreover, geometry helped Lewis not only think, but also imagine. Guest Columnist/,, "Mathematics Is Good for You -- Even in Narnia: Dr. David Calvis (Opinion)," 6 May 2018 The group considers the current site of DuPage Children’s Museum an efficient site for parking because of its geometry and location on the south side of the train tracks. Erin Hegarty, Naperville Sun, "Fifth Avenue development concepts still facing skepticism from community members," 6 June 2018 Samus Returns: The latest Metroid side-scroller (and first for the Nintendo 3DS) is built on exactly the kind of 3D-geometry, climb-and-clamber engine that speedrunners love to exploit. Sam Machkovech, Ars Technica, "The best, craziest speedruns from this year’s Summer Games Done Quick," 4 July 2018 There was some futuristic geometry happening—a lot of shapes and a lot of insane lines. Djuna Bel, Glamour, "It's Time to Give '80s Beauty Another Shot," 28 June 2018 Remember when your math teacher said geometry would come in handy one day? Ben Brasch, ajc, "Cobb's covered bridge hit again... this time by a U-Haul truck," 23 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geometry.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of geometry

14th century, in the meaning defined at sense 1a

History and Etymology for geometry

Middle English geometrie, from Anglo-French, from Latin geometria, from Greek geōmetria, from geōmetrein to measure the earth, from geō- ge- + metron measure — more at measure

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Statistics for geometry

Last Updated

20 Oct 2018

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Time Traveler for geometry

The first known use of geometry was in the 14th century

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More Definitions for geometry



English Language Learners Definition of geometry

: a branch of mathematics that deals with points, lines, angles, surfaces, and solids


ge·om·e·try | \jē-ˈä-mə-trē \

Kids Definition of geometry

: a branch of mathematics that deals with points, lines, angles, surfaces, and solids

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Comments on geometry

What made you want to look up geometry? Please tell us where you read or heard it (including the quote, if possible).


exaggeratedly or childishly emotional

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