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

This reminds me of the Pritzker Prize–winning Mexican architect Luis Barragán, who similarly expressed warmth through geometry. Mary Kaye Schilling, Town & Country, "Discovering the Culture of Mexico City," 18 Oct. 2016 Schools will have to accept different forms of credit — for example, a high school might award math credit for a student who leaves campus to work on framing a house, putting applied geometry skills to work. Katherine Long, The Seattle Times, "Washington voters don’t think schools prepare kids for careers. The state is trying to change that.," 31 Oct. 2018 When pressed about similarities of Tempest 4000 to TxK, Minter confirmed particular efforts to update the game for current-gen hardware, including a complete shift to new geometry for many of the game's elements. Sam Machkovech, Ars Technica, "Tempest 4000 finally lives after delays, legal threats—but what’s up on PC?," 17 July 2018 First published in 1915, the theory mathematically describes how gravity emerges from the fundamental geometry of space and time, or spacetime, as physicists call it. Maya Miller, Scientific American, "Einstein’s Greatest Theory Validated on a Galactic Scale," 22 June 2018 The artist’s fondness for the focused geometries of artists such as Renaissance master Piero della Francesca is well-known. Christopher Knight,, "Dan McCleary's paintings: Life at its peak beauty, but then what?," 14 June 2018 That spiraling geometry nods to River Point’s curves, especially the parabolic arch that defines the office tower’s base and is repeated in the plaza’s paving. Blair Kamin,, "Calatrava sculpture on the riverfront: Analysis," 9 May 2018 And this is part of their geometry class — that’s super cool. Frank Abderholden, Lake County News-Sun, "'These kids are the best': Glenbrook South students design, build walls at Habitat for Humanity home in Waukegan," 3 May 2018 Over-the-top design—like, say, tables and globes inlaid with the sacred geometry of the universe—is used only to further the shop’s wow factor. Cam Wolf, GQ, "James Harden Owns the Iciest Watch You've Ever Seen," 30 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

1 Dec 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).


the figure or shape of a crescent moon

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