Adjacent Words

Geometry definitions

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Webster's 1828 Dictionary

GEOM'ETRY, n. [Gr. the earth, and measure.] Originally and properly, the art of measuring the earth, or any distances or dimensions on it. But geometry now denotes the science of magnitude in general, comprehending the doctrine and relations of whatever is susceptible of augmentation and diminution; as the mensuration of lines, surfaces, solids, velocity, weight, etc., with their various relations.

WordNet (r) 3.0 (2005)

n
1: the pure mathematics of points and lines and curves and surfaces

Merriam Webster's

noun (plural -tries) Etymology: Middle English geometrie, from Anglo-French, from Latin geometria, from Greek ge?metria, from ge?metrein to measure the earth, from ge?- ge- + metron measure — more at measure Date: 14th century 1. a. 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 2. a. configuration b. surface shape 3. an arrangement of objects or parts that suggests geometric figures

Oxford Reference Dictionary

n. 1 the branch of mathematics concerned with the properties and relations of points, lines, surfaces, and solids. 2 the relative arrangement of objects or parts. Derivatives: geometrician n. Etymology: ME f. OF geometrie f. L geometria f. Gk (as GEO-, -METRY)

Webster's 1913 Dictionary

Mathematics Math`e*mat"ics, n. [F. math['e]matiques, pl., L. mathematica, sing., Gr. ? (sc. ?) science. See Mathematic, and -ics.] That science, or class of sciences, which treats of the exact relations existing between quantities or magnitudes, and of the methods by which, in accordance with these relations, quantities sought are deducible from other quantities known or supposed; the science of spatial and quantitative relations. Note: Mathematics embraces three departments, namely: 1. Arithmetic. 2. Geometry, including Trigonometry and Conic Sections. 3. Analysis, in which letters are used, including Algebra, Analytical Geometry, and Calculus. Each of these divisions is divided into pure or abstract, which considers magnitude or quantity abstractly, without relation to matter; and mixed or applied, which treats of magnitude as subsisting in material bodies, and is consequently interwoven with physical considerations.

Webster's 1913 Dictionary

Geometry Ge*om"e*try, n.; pl. Geometries[F. g['e]om['e]trie, L. geometria, fr. Gr. ?, fr. ? to measure land; ge`a, gh^, the earth + ? to measure. So called because one of its earliest and most important applications was to the measurement of the earth's surface. See Geometer.] 1. That branch of mathematics which investigates the relations, properties, and measurement of solids, surfaces, lines, and angles; the science which treats of the properties and relations of magnitudes; the science of the relations of space. 2. A treatise on this science. Analytical, or Co["o]rdinate, geometry, that branch of mathematical analysis which has for its object the analytical investigation of the relations and properties of geometrical magnitudes. Descriptive geometry, that part of geometry which treats of the graphic solution of all problems involving three dimensions. Elementary geometry, that part of geometry which treats of the simple properties of straight lines, circles, plane surface, solids bounded by plane surfaces, the sphere, the cylinder, and the right cone. Higher geometry, that pert of geometry which treats of those properties of straight lines, circles, etc., which are less simple in their relations, and of curves and surfaces of the second and higher degrees.

Webster's 1913 Dictionary

Geometry Ge*om"e*try, n.; pl. Geometries[F. g['e]om['e]trie, L. geometria, fr. Gr. ?, fr. ? to measure land; ge`a, gh^, the earth + ? to measure. So called because one of its earliest and most important applications was to the measurement of the earth's surface. See Geometer.] 1. That branch of mathematics which investigates the relations, properties, and measurement of solids, surfaces, lines, and angles; the science which treats of the properties and relations of magnitudes; the science of the relations of space. 2. A treatise on this science. Analytical, or Co["o]rdinate, geometry, that branch of mathematical analysis which has for its object the analytical investigation of the relations and properties of geometrical magnitudes. Descriptive geometry, that part of geometry which treats of the graphic solution of all problems involving three dimensions. Elementary geometry, that part of geometry which treats of the simple properties of straight lines, circles, plane surface, solids bounded by plane surfaces, the sphere, the cylinder, and the right cone. Higher geometry, that pert of geometry which treats of those properties of straight lines, circles, etc., which are less simple in their relations, and of curves and surfaces of the second and higher degrees.

Collin's Cobuild Dictionary

1. Geometry is the branch of mathematics concerned with the properties and relationships of lines, angles, curves, and shapes. ...the very ordered way in which mathematics and geometry describe nature. 2. The geometry of an object is its shape or the relationship of its parts to each other. They have tinkered with the geometry of the car's nose. N-UNCOUNT: usu with poss