Definition of plane

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Plane (a.) 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 surface is a straight line; a surface without curvature..

Lern More About Plane

Egress :: Egress (n.) The passing off from the sun's disk of an inferior planet, in a transit..
Perturbational :: Perturbational (a.) Of or pertaining to perturbation, esp. to the perturbations of the planets..
Contact :: Contact (n.) The plane between two adjacent bodies of dissimilar rock.
Planimetry :: Planimetry (n.) The mensuration of plane surfaces; -- distinguished from stereometry, or the mensuration of volumes..
Vortex :: Vortex (n.) A supposed collection of particles of very subtile matter, endowed with a rapid rotary motion around an axis which was also the axis of a sun or a planet. Descartes attempted to account for the formation of the universe, and the movements of the bodies composing it, by a theory of vortices..
Square :: Square (n.) The position of planets distant ninety degrees from each other; a quadrate.
Surface :: Surface (n.) A magnitude that has length and breadth without thickness; superficies; as, a plane surface; a spherical surface..
Ellipsoid :: Ellipsoid (n.) A solid, all plane sections of which are ellipses or circles. See Conoid, n., 2 (a)..
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..
Hendecagon :: Hendecagon (n.) A plane figure of eleven sides and eleven angles.
Planometer :: Planometer (n.) An instrument for gauging or testing a plane surface. See Surface gauge, under Surface..
Stereometer :: Stereography (n.) The art of delineating the forms of solid bodies on a plane; a branch of solid geometry which shows the construction of all solids which are regularly defined.
Dome :: Dome (n.) A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form..
Plane-parallel :: Plane-parallel (a.) Having opposite surfaces exactly plane and parallel, as a piece of glass..
Brachypinacoid :: Brachypinacoid (n.) A plane of an orthorhombic crystal which is parallel both to the vertical axis and to the shorter lateral (brachydiagonal) axis.
Octant :: Octant (n.) One of the eight parts into which a space is divided by three coordinate planes.
Jim-crow :: "Jim-crow (n.) A planing machine with a reversing tool, to plane both ways..
Element :: Element (n.) An infinitesimal part of anything of the same nature as the entire magnitude considered; as, in a solid an element may be the infinitesimal portion between any two planes that are separated an indefinitely small distance. In the calculus, element is sometimes used as synonymous with differential..
Inscribable :: Inscribable (a.) Capable of being inscribed, -- used specif. (Math.) of solids or plane figures capable of being inscribed in other solids or figures..
Plain :: Plain (v.) To plane or level; to make plain or even on the surface.
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