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/dʒiˈɑmətri/ Listen

noun

Geometry n. (pl. geometries)

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 geometry, or Coördinate 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.

See images of 'Geometry'

Etymology of 'Geometry'

Collaborative International Dictionary of English 0.48

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"Geometry" Quotes from Famous Books

... has a great variety of uses. It serves him in some of the games he plays. When I saw the boys in geometry use their queues to strike an arc or draw a circle, it reminded me of my college days when I had forgotten to take a string to class. The laborer spreads a handkerchief or towel over his head, wraps his queue around it and makes for himself a hat. The cart driver ...

— The Chinese Boy and Girl • Isaac Taylor Headland

... should be asked why the creative imagination directs itself preferably in one line rather than in another—toward poetry or physics, trade or mechanics, geometry or painting, strategy or music, etc.—we have nothing in answer. It is a result of the individual organization, the secret of which we do not possess. In ordinary life we meet people visibly borne along toward love or good cheer, toward ...

— Essay on the Creative Imagination • Th. Ribot

... 1676 (Vide infra. I gift them in Januar 1683). For Herberts Life of Henry the 8th of England, 40 pence. For Senecae Tragoediae cum notis Faruabij, 12 pence. Lord Bacons History of Henry the 7 of England gifted me by the Lord Abotshall. As also gifted to me by him on the 2d of March 1677 Euclids Geometry with Mr. Jo. Dees learned praeface; and item gifted Ramseys Astrologia restaurata et munda with a vindication of it and rules for electing the tymes for all manner of works; item gifted me Lex Talionis being another answer made by Mr. Gunning ...

— Publications of the Scottish History Society, Vol. 36 • Sir John Lauder

... studied the bulletin board with a serious face. She had successfully carried five studies during her freshman year. She decided that she would do so again, provided the fifth subject held interest enough to warrant the extra effort it meant. Plane geometry, of course, she would have to take. Then there was second year French. She and Constance intended to go on with the language of which they were so fond. Her General had insisted that she must begin Latin. She should have begun it in her freshman year. That made three. Then there was chemistry. ...

— Marjorie Dean - High School Sophomore • Pauline Lester

... expecting to be summoned by his father or the first lieutenant, but he encountered neither; they seemed to have forgotten his existence. So he read below a great deal of light, cheerful, edifying matter upon navigation—good yawning stuff, with plenty of geometry in it and mathematical calculations, seeing little of his messmates, who were on ...

— Syd Belton - The Boy who would not go to Sea • George Manville Fenn

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