Plane

Plane
Plane Plane, a. [L. planus: cf. F. plan. See {Plan}, a.] Without elevations or depressions; even; level; flat; lying in, or constituting, a plane; as, a plane surface. [1913 Webster]

Note: In science, this word (instead of plain) is almost exclusively used to designate a flat or level surface. [1913 Webster]

{Plane angle}, the angle included between two straight lines in a plane.

{Plane chart}, {Plane curve}. See under {Chart} and {Curve}.

{Plane figure}, a figure all points of which lie in the same plane. If bounded by straight lines it is a rectilinear plane figure, if by curved lines it is a curvilinear plane figure.

{Plane geometry}, that part of geometry which treats of the relations and properties of plane figures.

{Plane problem}, a problem which can be solved geometrically by the aid of the right line and circle only.

{Plane sailing} (Naut.), the method of computing a ship's place and course on the supposition that the earth's surface is a plane.

{Plane scale} (Naut.), a scale for the use of navigators, on which are graduated chords, sines, tangents, secants, rhumbs, geographical miles, etc.

{Plane surveying}, surveying in which the curvature of the earth is disregarded; ordinary field and topographical surveying of tracts of moderate extent.

{Plane table}, an instrument used for plotting the lines of a survey on paper in the field.

{Plane trigonometry}, the branch of trigonometry in which its principles are applied to plane triangles. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • plané — plané …   Dictionnaire des rimes

  • plane — [ plan ] n. f. • XIVe; plaine XIIe; réfect., d apr. le v. planer, de l a. fr. plaine, bas lat. plana ♦ Techn. Outil formé d une lame tranchante et de deux poignées, appelé aussi couteau à deux manches, qui sert à aplanir, à dégrossir une surface… …   Encyclopédie Universelle

  • plané — plane [ plan ] n. f. • XIVe; plaine XIIe; réfect., d apr. le v. planer, de l a. fr. plaine, bas lat. plana ♦ Techn. Outil formé d une lame tranchante et de deux poignées, appelé aussi couteau à deux manches, qui sert à aplanir, à dégrossir une… …   Encyclopédie Universelle

  • Plane — Plane, n. [F. plane, L. plana. See {Plane}, v. & a.] 1. (Geom.) A surface, real or imaginary, in which, if any two points are taken, the straight line which joins them lies wholly in that surface; or a surface, any section of which by a like… …   The Collaborative International Dictionary of English

  • plane — 1. (pla n ) s. m. Nom vulgaire donné à une espèce d érable que les botanistes appellent érable plane, acer platanoides, L. •   Des gazons émaillés l ornaient [une fontaine] tout alentour ; Un plane l ombrageait de son vaste contour, SÉNECÉ… …   Dictionnaire de la Langue Française d'Émile Littré

  • plane — UK US /pleɪn/ noun [C] ► an aircraft with wings and one or more engines: a plane for/to/from sth »I ll get the next plane to London. on/in a plane »He s on a plane at the moment, on his way to Chicago. a plane leaves/takes off/lands »The plane… …   Financial and business terms

  • plane — plane1 [plān] n. [ME < MFr plasne < L platanus < Gr platanos < platys, broad (see PLATY ): from its broad leaves] any of a genus (Platanus) of trees of the plane tree family having maplelike leaves, spherical dry fruits, and bark that …   English World dictionary

  • plane — Ⅰ. plane [1] ► NOUN 1) a flat surface on which a straight line joining any two points would wholly lie. 2) a level of existence or thought. ► ADJECTIVE 1) completely level or flat. 2) relating to two dimensional surfaces or magnitudes …   English terms dictionary

  • Plane — Plane, v. t. [imp. & p. p. {Planed}; p. pr. & vb. n. {Planing}.] [Cf. F. planer, L. planare, fr. planus. See {Plane}, a., {Plain}, a., and cf. {Planish}.] 1. To make smooth; to level; to pare off the inequalities of the surface of, as of a board… …   The Collaborative International Dictionary of English

  • Plane — Plane, n. [F., fr. L. platanus, Gr. ?, fr. ? broad; so called on account of its broad leaves and spreading form. See {Place}, and cf. {Platane}, {Plantain} the tree.] (Bot.) Any tree of the genus {Platanus}. [1913 Webster] Note: The Oriental… …   The Collaborative International Dictionary of English

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