cylinder

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“
This proportion corresponds very nearly with one square inch per horse power when the length of the cylinder is about equal to its diameter; and one square inch of area per horse power for the cylinder ports and eduction passages answers very well in the case of engines working at the ordinary speed of 220 feet per minute.

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Definitions (39)

Toggle American Heritage definitions American Heritage Dictionary (9)

  1. noun Mathematics The surface generated by a straight line intersecting and moving along a closed plane curve, the directrix, while remaining parallel to a fixed straight line that is not on or parallel to the plane of the directrix.
  2. noun Mathematics The portion of such a surface bounded by two parallel planes and the regions of the planes bounded by the surface.
  3. noun Mathematics A solid bounded by two parallel planes and such a surface, especially such a surface having a circle as its directrix.
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Examples (50)

  • Wrapped around the cylinder was a sheet of tinfoil, with which engaged a small chisel-like recording needle, connected adhesively with the centre of an iron diaphragm. —  Edison, His Life and Inventions
  • Upon depressing any one of these keys the motion of the cylinder is arrested when one of its pins is caught and held by the depressed key. —  Edison, His Life and Inventions
  • Resting on the cylinder was a palladium-faced pen or spring, which was attached to a mica diaphragm in a resonator. —  Edison, His Life and Inventions
  • The interface between the non-rotating bay and the rotating part of the cylinder was also a bit tricky, but again they got through without anything more serious than a bruised shin on Kosta's part. —  Angelmass
  • He saw now that the cylinder was the repository for dozens more of these wooden boxes, most of which must have been smashed when Merlin had nudged the aircraft with Tyrant. —  Dozois, Gardner ; Strahan, Jonathan - SSC - The New Space Opera (v1.0)
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Allen's Allen's Synonyms and Antonyms

Used in the same context Used in the Same Context

tube ·  valve ·  tank ·  container ·  rod ·  barrel ·  shaft ·  disk ·  pump ·  piston ·  bolt ·  block

Used in the same contextWord Family

cylinder:   cylinders

Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Latin cylindrus, from Greek kulindros, from kulindein, to roll.

Toggle Century etymologies Century Dictionary (1)

  1. Early modern English also cilinder, cilindre; in Middle English in form chilindre, a cylindrical sun-dial; from Old French cilindre, French cylindre = Spanish Italian cilindro = Portuguese cylindro, from Latin cylindrus, a cylinder, a roller, a leveler, from Greek κύλινδρος, a cylinder, a roller, roll, from κυλίνδειν, roll, κυλίειν, roll: see cycle. Doublet of calender q. v.
 

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/ˈsɪlɪndər/
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