Definition of plane

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Plane (a.) An ideal surface, conceived as coinciding with, or containing, some designated astronomical line, circle, or other curve; as, the plane of an orbit; the plane of the ecliptic, or of the equator..

Lern More About Plane

Perihelium :: Perihelium (n.) That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.
Stock :: Stock (n.) The block of wood or metal frame which constitutes the body of a plane, and in which the plane iron is fitted; a plane stock..
Decagon :: Decagon (n.) A plane figure having ten sides and ten angles; any figure having ten angles. A regular decagon is one that has all its sides and angles equal.
Three-sided :: Three-sided (a.) Having three sides, especially three plane sides; as, a three-sided stem, leaf, petiole, peduncle, scape, or pericarp..
Dipleidoscope :: Dipleidoscope (n.) An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian..
Trigon :: Trigon (n.) Trine, an aspect of two planets distant 120 degrees from each other..
Tore :: Tore (n.) The surface described by the circumference of a circle revolving about a straight line in its own plane.
Fillister :: Fillister (n.) A plane for making a rabbet.
Parabola :: Parabola (n.) A kind of curve; one of the conic sections formed by the intersection of the surface of a cone with a plane parallel to one of its sides. It is a curve, any point of which is equally distant from a fixed point, called the focus, and a fixed straight line, called the directrix. See Focus..
Warp :: Warp (v. i.) To turn, twist, or be twisted out of shape; esp., to be twisted or bent out of a flat plane; as, a board warps in seasoning or shrinking..
Direction :: Direction (n.) The pointing of a piece with reference to an imaginary vertical axis; -- distinguished from elevation. The direction is given when the plane of sight passes through the object.
Astrolabe :: Astrolabe (n.) A stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere..
Chiliahedron :: Chiliahedron (n.) A figure bounded by a thousand plane surface.
Perpendicular :: Perpendicular (a.) Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.
Planet-struck :: Planet-struck (a.) Affected by the influence of planets; blasted.
Aeroplane :: Aeroplane (n.) A flying machine, or a small plane for experiments on flying, which floats in the air only when propelled through it..
Antecedence :: Antecedence (n.) An apparent motion of a planet toward the west; retrogradation.
Planimetry :: Planimetry (n.) The mensuration of plane surfaces; -- distinguished from stereometry, or the mensuration of volumes..
Truncation :: Truncation (n.) The replacement of an edge or solid angle by a plane, especially when the plane is equally inclined to the adjoining faces..
Inequality :: Inequality (n.) An irregularity, or a deviation, in the motion of a planet or satellite from its uniform mean motion; the amount of such deviation..
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