n. [ F. cylindre, OF. cilindre, L. cylindrus, fr. Gr. ky`lindros, fr. kyli`ndein, kyli`ein, to roll. Cf. Calender the machine. ] [ 1913 Webster ]

1. (Geom.) (a) A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular. (b) The space inclosed by any cylindrical surface. The space may be limited or unlimited in length. [ 1913 Webster ]

2. Any hollow body of cylindrical form, as: (a) The chamber of a steam engine in which the piston is moved by the force of steam. (b) The barrel of an air or other pump. (c) (Print.) The revolving platen or bed which produces the impression or carries the type in a cylinder press. (d) The bore of a gun; the turning chambered breech of a revolver. [ 1913 Webster ]

3. The revolving square prism carrying the cards in a Jacquard loom. [ 1913 Webster ]

Cylinder axis. (Anat.) See Axis cylinder, under Axis. --
Cylinder engine (Paper Making), a machine in which a cylinder takes up the pulp and delivers it in a continuous sheet to the dryers. --
Cylinder escapement. See Escapement. --
Cylinder glass. See Glass. --
Cylinder mill. See Roller mill. --
Cylinder press. See Press. [ 1913 Webster ]

a. [ Cf. F. cylyndracé ] Cylindrical, or approaching a cylindrical form. [ 1913 Webster ]

{ } a. [ Gr. kylindriko`s, from ky`lindros cylinder: cf. F. cylindrique. ] Having the form of a cylinder, or of a section of its convex surface; partaking of the properties of the cylinder. [ 1913 Webster ]

Cylindrical lens, a lens having one, or more than one, cylindrical surface. --
Cylindric surface or
Cylindrical surface, (Geom.), a surface described by a straight line that moves according to any law, but so as to be constantly parallel to a given line. --
Cylindrical vault. (Arch.) See under Vault, n. [ 1913 Webster ]

n. 1. the roundness of a 3-dimensional cylinder.
Syn. -- cylindricalness; cylindricity. [ WordNet 1.5 ]

adv. In the manner or shape of a cylinder; so as to be cylindrical. [ 1913 Webster ]

n. 1. the roundness of a 3-dimensional cylinder.
Syn. -- cylindricality; cylindricity. [ WordNet 1.5 ]

n. The quality or condition of being cylindrical. [ 1913 Webster ]

a. [ L. cylindrus (Gr. ky`lindros) cylinder + -form: cf. F. cylindriforme. ] Having the form of a cylinder. [ 1913 Webster ]

n. [ Gr. ky`lindros cylinder + -oid: cf. F. cylindroïde. ] 1. A solid body resembling a right cylinder, but having the bases or ends elliptical. [ 1913 Webster ]

2. (Geom.) A certain surface of the third degree, described by a moving straight line; -- used to illustrate the motions of a rigid body and also the forces acting on the body. [ 1913 Webster ]

a. [ Gr. ky`lindros + me`tron measure. ] Belonging to a scale used in measuring cylinders. [ 1913 Webster ]