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cylinder
[ sil-in-der ]
noun
- Geometry. a surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes.
- any cylinderlike object or part, whether solid or hollow.
- the rotating part of a revolver, containing the chambers for the cartridges.
- (in a pump) a cylindrical chamber in which a piston slides to move or compress a fluid.
- (in an engine) a cylindrical chamber in which the pressure of a gas or liquid moves a sliding piston.
- (in certain printing presses)
- a rotating cylinder that produces the impression and under which a flat form to be printed from passes.
- either of two cylinders, one carrying a curved form or plate to be printed from, that rotate against each other in opposite directions.
- (in certain locks) a cylindrical device for retaining the bolt until tumblers have been pushed out of its way.
- (in a screw or cylindrical gear) an imaginary cylindrical form, concentric to the axis, defining the pitch or the inner or outer ends of the threads or teeth.
- Computers. the tracks of a magnetic disk that are accessible from a single radial position of the access mechanism.
- Textiles. the main roller on a carding machine, especially the roller covered with card clothing that works in combination with the worker and stripper rollers in carding fibers.
- Archaeology. a cylindrical or somewhat barrel-shaped stone or clay object bearing a cuneiform inscription or a carved design, worn by the Babylonians, Assyrians, and kindred peoples as a seal and amulet.
verb (used with object)
- to furnish with a cylinder or cylinders.
- to subject to the action of a cylinder or cylinders.
cylinder
/ ˈɪɪԻə /
noun
- a solid consisting of two parallel planes bounded by identical closed curves, usually circles, that are interconnected at every point by a set of parallel lines, usually perpendicular to the planes. Volume base area × length
- a surface formed by a line moving round a closed plane curve at a fixed angle to it
- any object shaped like a cylinder
- the chamber in a reciprocating internal-combustion engine, pump, or compressor within which the piston moves See also cylinder block
- the rotating mechanism of a revolver, situated behind the barrel and containing cartridge chambers
- printing any of the rotating drums on a printing press
- Also calledcylinder seal a cylindrical seal of stone, clay, or precious stone decorated with linear designs, found in the Middle East and Balkans: dating from about 6000 bc
- Also calledhot-water cylinder a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
- firing on all cylindersworking or performing at full capability
verb
- tr to provide (a system) with cylinders
cylinder
/ ĭ′ə-ə /
- A three-dimensional surface or solid object bounded by a curved surface and two parallel circles of equal size at the ends. The curved surface is formed by all the line segments joining corresponding points of the two parallel circles.
Derived Forms
- ˈԻ-ˌ, adjective
Other 51Թ Forms
- i·· adjective
51Թ History and Origins
Origin of cylinder1
51Թ History and Origins
Origin of cylinder1
Idioms and Phrases
see firing on all cylinders .Example Sentences
Friends, relatives and neighbours called every day, asking for help procuring oxygen cylinders, hospital beds and even essential medicines.
Already, the area in front of the school was snarled with donkey carts loaded with people’s belongings, cooking gas cylinders, jugs of drinking water, mattresses and tarps.
This is why your cold often feels worse in the morning as your symptoms are the result of an immune system firing on all cylinders.
“These are all batteries,” he said as he dropped about 20 scorched cylinders into a 5-gallon bucket one by one.
The third and final water tank in the Palisades, a squat steel cylinder in Temescal Canyon, ran dry.
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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