The Collaborative International Dictionary of English v.0.48:

Press \Press\, n. [F. presse. See 4th Press.]
   1. An apparatus or machine by which any substance or body is
      pressed, squeezed, stamped, or shaped, or by which an
      impression of a body is taken; sometimes, the place or
      building containing a press or presses.
      [1913 Webster]

   Note: Presses are differently constructed for various
         purposes in the arts, their specific uses being
         commonly designated; as, a cotton press, a wine press,
         a cider press, a copying press, etc. See Drill press.
         [1913 Webster]

   2. Specifically, a printing press.
      [1913 Webster]

   3. The art or business of printing and publishing; hence,
      printed publications, taken collectively, more especially
      newspapers or the persons employed in writing for them;
      as, a free press is a blessing, a licentious press is a
      curse.
      [1913 Webster]

   4. An upright case or closet for the safe keeping of
      articles; as, a clothes press. --Shak.
      [1913 Webster]

   5. The act of pressing or thronging forward.
      [1913 Webster]

            In their throng and press to that last hold. --Shak.
      [1913 Webster]

   6. Urgent demands of business or affairs; urgency; as, a
      press of engagements.
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   7. A multitude of individuals crowded together; ? crowd of
      single things; a throng.
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            They could not come nigh unto him for the press.
                                                  --Mark ii. 4.
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   Cylinder press, a printing press in which the impression is
      produced by a revolving cylinder under which the form
      passes; also, one in which the form of type or plates is
      curved around a cylinder, instead of resting on a flat
      bed.

   Hydrostatic press. See under Hydrostatic.

   Liberty of the press, the free right of publishing books,
      pamphlets, or papers, without previous restraint or
      censorship, subject only to punishment for libelous,
      seditious, or morally pernicious matters.

   Press bed, a bed that may be folded, and inclosed, in a
      press or closet. --Boswell.

   Press of sail, (Naut.), as much sail as the state of the
      wind will permit.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cylinder \Cyl"in*der\ (s?l"?n-d?r), 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]

WordNet (r) 3.0 (2006):

cylinder press
    n 1: a printing press where the type is carried on a flat bed
         under a cylinder that holds paper and rolls over the type
         [syn: flatbed press, cylinder press]