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.

Origin of geometry

1300–50;Middle English < Latingeōmetria < Greekgeōmetría. See geo-, -metry

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

artsthe shape of a solid or a surface

Word Origin for geometry

C14: from Latin geōmetria, from Greek, from geōmetrein to measure the land

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).