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Hasil cari dari kata atau frase: Geometric pen (0.00887 detik)
Found 1 items, similar to Geometric pen.
English → English (gcide) Definition: Geometric pen 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 (Zo["o]l.), 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] Pen \Pen\, 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. (Zo["o]l.) The internal shell of a squid. [1913 Webster] 6. [Etymol. uncertain.] (Zo["o]l.) A female 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 (Zo["o]l.), a pennatula. [Usually written sea-pen.] [1913 Webster]

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