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2 definitions found
 for Geometric pen
From The Collaborative International Dictionary of English v.0.48 :

  Geometric \Ge`o*met"ric\, Geometrical \Ge`o*met"ric*al\, a. [L.
     geometricus; Gr. ?: cf. F. g['e]om['e]trique.]
     1. Pertaining to, or according to the rules or principles of,
        geometry; determined by geometry; as, a geometrical
        solution of a problem.
        [1913 Webster]
  
     2. (Art) characterized by simple geometric forms in design
        and decoration; as, a buffalo hide painted with red and
        black geometrical designs.
  
     Syn: geometric.
          [WordNet 1.5]
  
     Note: Geometric is often used, as opposed to algebraic, to
           include processes or solutions in which the
           propositions or principles of geometry are made use of
           rather than those of algebra.
           [1913 Webster]
  
     Note: Geometrical is often used in a limited or strictly
           technical sense, as opposed to mechanical; thus, a
           construction or solution is geometrical which can be
           made by ruler and compasses, i. e., by means of right
           lines and circles. Every construction or solution which
           requires any other curve, or such motion of a line or
           circle as would generate any other curve, is not
           geometrical, but mechanical. By another distinction, a
           geometrical solution is one obtained by the rules of
           geometry, or processes of analysis, and hence is exact;
           while a mechanical solution is one obtained by trial,
           by actual measurements, with instruments, etc., and is
           only approximate and empirical.
           [1913 Webster]
  
     Geometrical curve. Same as Algebraic curve; -- so called
        because their different points may be constructed by the
        operations of elementary geometry.
  
     Geometric lathe, an instrument for engraving bank notes,
        etc., with complicated patterns of interlacing lines; --
        called also cycloidal engine.
  
     Geometrical pace, a measure of five feet.
  
     Geometric pen, an instrument for drawing geometric curves,
        in which the movements of a pen or pencil attached to a
        revolving arm of adjustable length may be indefinitely
        varied by changing the toothed wheels which give motion to
        the arm.
  
     Geometrical plane (Persp.), the same as Ground plane .
  
     Geometrical progression, proportion, ratio. See under
        Progression, Proportion and Ratio.
  
     Geometrical radius, in gearing, the radius of the pitch
        circle of a cogwheel. --Knight.
  
     Geometric spider (Zool.), one of many species of spiders,
        which spin a geometrical web. They mostly belong to
        Epeira and allied genera, as the garden spider. See
        Garden spider.
  
     Geometric square, a portable instrument in the form of a
        square frame for ascertaining distances and heights by
        measuring angles.
  
     Geometrical staircase, one in which the stairs are
        supported by the wall at one end only.
  
     Geometrical tracery, in architecture and decoration,
        tracery arranged in geometrical figures.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Pen \Pen\ (p[e^]n), n. [OE. penne, OF. penne, pene, F. penne,
     fr. L. penna.]
     1. A feather. [Obs.] --Spenser.
        [1913 Webster]
  
     2. A wing. [Obs.] --Milton.
        [1913 Webster]
  
     3. An instrument used for writing with ink, formerly made of
        a reed, or of the quill of a goose or other bird, but now
        also of other materials, as of steel, gold, etc. Also,
        originally, a stylus or other instrument for scratching or
        graving.
        [1913 Webster]
  
              Graven with an iron pen and lead in the rock. --Job
                                                    xix. 24.
        [1913 Webster]
  
     4. Fig.: A writer, or his style; as, he has a sharp pen.
        "Those learned pens." --Fuller.
        [1913 Webster]
  
     5. (Zool.) The internal shell of a squid.
        [1913 Webster]
  
     6. [Etymol. uncertain.] (Zool.) A female swan; -- contrasted
        with cob, the male swan. [Prov. Eng.]
        [1913 Webster]
  
     Bow pen. See Bow-pen.
  
     Dotting pen, a pen for drawing dotted lines.
  
     Drawing pen, or Ruling pen, a pen for ruling lines having
        a pair of blades between which the ink is contained.
  
     Fountain pen, Geometric pen. See under Fountain, and
        Geometric.
  
     Music pen, a pen having five points for drawing the five
        lines of the staff.
  
     Pen and ink, or pen-and-ink, executed or done with a pen
        and ink; as, a pen and ink sketch.
  
     Pen feather. A pin feather. [Obs.]
  
     Pen name. See under Name.
  
     Sea pen (Zool.), a pennatula. [Usually written sea-pen.]
        [1913 Webster]

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