Geometric lathe
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]

The Collaborative International Dictionary of English. 2000.

### Look at other dictionaries:

• Geometric lathe — Lathe Lathe (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning… …   The Collaborative International Dictionary of English

• Geometric lathe — A geometric lathe was used for making ornamental patterns on the plates used in printing bank notes and postage stamps. It is sometimes called a Guilloché lathe. It developed early in the nineteenth century when efforts were introduced to combat… …   Wikipedia

• geometric lathe — noun : an instrument for engraving complicated patterns of interlacing lines (as on bank notes) …   Useful english dictionary

• Lathe — (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning being, a frame… …   The Collaborative International Dictionary of English

• Lathe (disambiguation) — Lathe may refer to:In woodworking and metalworking: *Lathe, used in turning wood, metals and other materials. *Lathe (metal), a lathe used specifically for metals. *Geometric lathe, used for making ornamental patterns on the plates used in… …   Wikipedia

• 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… …   The Collaborative International Dictionary of English

• 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.… …   The Collaborative International Dictionary of English

• Geometric spider — 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.… …   The Collaborative International Dictionary of English

• Geometric square — 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.… …   The Collaborative International Dictionary of English

• Blanchard lathe — Lathe Lathe (l[=a][th]), n. [OE. lathe a granary; akin to G. lade a chest, Icel. hla[eth]a a storehouse, barn; but cf. also Icel. l[ o][eth] a smith s lathe. Senses 2 and 3 are perh. of the same origin as lathe a granary, the original meaning… …   The Collaborative International Dictionary of English

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