Ground plane
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:

• Ground plane — ground ground (ground), n. [OE. ground, grund, AS. grund; akin to D. grond, OS., G., Sw., & Dan. grund, Icel. grunnr bottom, Goth. grundus (in composition); perh. orig. meaning, dust, gravel, and if so perh. akin to E. grind.] 1. The surface of… …   The Collaborative International Dictionary of English

• Ground plane — In electrical engineering, a ground plane is an electrically conductive surface. Radio antenna theory In telecommunication, a ground plane structure or relationship exists between the antenna and another object, where the only structure of the… …   Wikipedia

• Ground plane — Antenne ground plane Antenne ground plane en quart d onde au sol ou sur une surface conductrice quelconque grande devant la longueur d onde. Une antenne ground plane ou GPA (Ground Plane Antenna) est un dipôle dans lequel on a remplacé la moitié… …   Wikipédia en Français

• ground plane — noun : the horizontal plane of projection in perspective drawing * * * 1. (in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line. 2. Elect. a ground plate… …   Useful english dictionary

• ground plane — 1. (in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line. 2. Elect. a ground plate or an underground mesh of radial wires connected to a vertical antenna… …   Universalium

• Ground-plane — Esquema detallado de medidas para una Antena Ground Plane Los brazos pintados en rosa tienen la misma longitud Antena omnidireccional, con el activo conectado a un elemento radiante, y la masa a un plano de tierra, bien natural, el suelo o… …   Wikipedia Español

• Antenne ground plane — en quart d onde au sol ou sur une surface conductrice quelconque grande devant la longueur d onde …   Wikipédia en Français

• antenna ground plane — antenos atsvaras statusas T sritis radioelektronika atitikmenys: angl. antenna ground plane; antenna ground screen vok. Antennenerdplate, f; Antennenreflektorschirm, m rus. противовес антенны, m pranc. contrepoids d antenne, m …   Radioelektronikos terminų žodynas

• ground — (ground), n. [OE. ground, grund, AS. grund; akin to D. grond, OS., G., Sw., & Dan. grund, Icel. grunnr bottom, Goth. grundus (in composition); perh. orig. meaning, dust, gravel, and if so perh. akin to E. grind.] 1. The surface of the earth; the… …   The Collaborative International Dictionary of English

• Ground angling — ground ground (ground), n. [OE. ground, grund, AS. grund; akin to D. grond, OS., G., Sw., & Dan. grund, Icel. grunnr bottom, Goth. grundus (in composition); perh. orig. meaning, dust, gravel, and if so perh. akin to E. grind.] 1. The surface of… …   The Collaborative International Dictionary of English