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cylinder
cylinder in mathematics, surface generated by a line moving parallel to a given fixed line and continually intersecting a given fixed curve called the directrix; each line of the family of lines forming the cylinder is called a ruling, or generator. If the directrix is a conic section (e.g., a circle or a parabola), the cylinder is called a quadric cylinder. The commonest type of cylinder is the right circular cylinder, in which the directrix is a circle and the lines forming the cylinder are all perpendicular to the plane of the circle. The solid bounded by a cylindrical surface and two parallel planes intersecting the surface in closed curves is also called a cylinder. The perpendicular distance between the planes is the altitude of the cylinder. The volume of the cylinder is equal to the product of the altitude and the area of the base (the area enclosed by either closed curve). |
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"cylinder." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "cylinder." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-cylinder.html "cylinder." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-cylinder.html |
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cylinder
cyl·in·der / ˈsiləndər/ • n. a solid geometric figure with straight parallel sides and a circular or oval section. ∎ a solid or hollow body, object, or part with such a shape. ∎ a piston chamber in a steam or internal combustion engine. ∎ a cylindrical container for liquefied gas under pressure. ∎ a rotating metal roller in a printing press. ∎ Archaeol. a cylinder seal. DERIVATIVES: cy·lin·dric / səˈlindrik/ adj. cy·lin·dri·cal / səˈlindrikəl/ adj. cy·lin·dri·cal·ly / səˈlindrik(ə)lē/ adv. |
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"cylinder." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "cylinder." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O999-cylinder.html "cylinder." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-cylinder.html |
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cylinder
cylinder or rotary valve. A special type of valve in brass instr., in much use in some European countries but in Brit. and USA applied only to the Fr. hn. The term is sometimes used for any kind of valve, e.g. It. trombone a cilindri (valve tb.).
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MICHAEL KENNEDY and JOYCE BOURNE. "cylinder." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. MICHAEL KENNEDY and JOYCE BOURNE. "cylinder." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O76-cylinder.html MICHAEL KENNEDY and JOYCE BOURNE. "cylinder." The Concise Oxford Dictionary of Music. 1996. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O76-cylinder.html |
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cylinder
cylinder Solid figure or surface formed by rotating a rectangle using one side as an axis. If the vertical height is h and the radius of the base r, then the volume is πr2h and the curved surface area 2πrh.
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"cylinder." World Encyclopedia. 2005. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "cylinder." World Encyclopedia. 2005. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O142-cylinder.html "cylinder." World Encyclopedia. 2005. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-cylinder.html |
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cylinder
cylinder XVI. — L. cylindrus — Gr. kúlindros roller, f. kulindein roll.
So cylindrical XVII. f. modL. cylindricus — Gr. kulindrikós. |
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T. F. HOAD. "cylinder." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "cylinder." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O27-cylinder.html T. F. HOAD. "cylinder." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-cylinder.html |
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cylinder
cylinder
•bidder, consider, Jiddah, kidder, whydah
•bewilder, builder, guilder, Hilda, Matilda, St Kilda, Tilda, tilde
•Belinda, Cabinda, cinder, Clarinda, Dorinda, hinder, Kinder, Linda, Lucinda, Melinda, tinder
•Drogheda • shipbuilder • bodybuilder
•coachbuilder • boatbuilder • Candida
•spina bifida
•calendar, calender
•Phillida • cylinder • Phasmida
•Andromeda • Mérida • Florida
•Cressida • lavender • provender
•chider, cider, divider, eider, glider, Guider, Haida, hider, Ida, insider, Oneida, outsider, provider, rider, Ryder, Saida, slider, spider, strider, stridor
•Wilder
•binder, blinder, finder, grinder, kinda, minder, ringbinder, winder
•Fassbinder • spellbinder • highbinder
•bookbinder • pathfinder
•rangefinder • viewfinder • backslider
•paraglider • childminder • outrider
•joyrider • roughrider • ringsider
•Tynesider • sidewinder
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"cylinder." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "cylinder." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O233-cylinder.html "cylinder." Oxford Dictionary of Rhymes. 2007. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-cylinder.html |
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