| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024cyl•in•der /ˈsɪlɪndɚ/USA pronunciation n. [countable]- Mathematicsa surface shape or solid having long straight sides and two flat round ends;
a shape resembling a tube with a top and bottom. - any object or part shaped like a cylinder, as the part of a revolver holding the bullets, or a part of an engine where a piston compresses the air and fuel mixture.
cyl•in•dered, adj. WordReference Random House Unabridged Dictionary of American English © 2024cyl•in•der (sil′in dər),USA pronunciation n. - Mathematics[Geom.]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.
- Militarythe rotating part of a revolver, containing the chambers for the cartridges.
- Hydraulics(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)
- Printinga rotating cylinder that produces the impression and under which a flat form to be printed from passes.
- Printingeither of two cylinders, one carrying a curved form or plate to be printed from, that rotate against each other in opposite directions.
- Building(in certain locks) a cylindrical device for retaining the bolt until tumblers have been pushed out of its way.
- Building(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.
- Computingthe tracks of a magnetic disk that are accessible from a single radial position of the access mechanism.
- Textilesthe main roller on a carding machine, esp. the roller covered with card clothing that works in combination with the worker and stripper rollers in carding fibers.
- Archaeologya 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.
v.t. - to furnish with a cylinder or cylinders.
- to subject to the action of a cylinder or cylinders.
- Greek kýlindros roller, cylinder, akin to kylíndein to roll
- Latin cylindrus
- 1560–70
Collins Concise English Dictionary © HarperCollins Publishers:: cylinder /ˈsɪlɪndə/ n - 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
- the rotating mechanism of a revolver, situated behind the barrel and containing cartridge chambers
- any of the rotating drums on a printing press
- Also called: cylinder 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
Etymology: 16th Century: from Latin cylindrus, from Greek kulindros a roller, from kulindein to rollˈcylinder-ˌlike adj |