Cylinder Definition

sĭlən-dər
cylinders
noun
cylinders
A solid figure consisting of two parallel bases in the form of congruent, closed curves joined by a smooth, continuous, closed surface; specif., such a figure (right circular cylinder) having circular bases and a surface perpendicular to the bases.
Webster's New World
The portion of such a surface bounded by two parallel planes and the regions of the planes bounded by the surface.
American Heritage
The surface of such a solid.
Webster's New World
Anything having the shape of a cylinder, whether hollow or solid.
Webster's New World
A cylindrical container or object.
American Heritage
Synonyms:
  • piston chamber
  • volumetric curve
  • barrel
  • circular solid
  • machine part
  • engine part
  • expansion chamber
  • compression chamber

Other Word Forms of Cylinder

Noun

Singular:
cylinder
Plural:
cylinders

Origin of Cylinder

  • From Middle French cylindre, from Latin cylindrus, from Ancient Greek κύλινδρος (kulindros).

    From Wiktionary

  • Latin cylindrus from Greek kulindros from kulindein to roll

    From American Heritage Dictionary of the English Language, 5th Edition

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