plane
nounEtymology From Latin plānum (“flat surface”), a noun use of the neuter of plānus (“plain”). The word was introduced in the 17th century to distinguish the geometrical senses from the other senses of plain. Doublet of llano, piano, and plain.
A level or flat surface.
Geometry, Mathematics, Sciences A flat surface extending infinitely in all directions (e.g. horizontal or vertical plane); a bounded portion thereof.
- Mirrors in the compartments have been canted out of the vertical plane to reduce reflections to the passengers when seated.1979 August, Graham Burtenshaw, Michael S. Welch, “O.V.S. Bulleid's SR loco-hauled coaches - 1”, in Railway World, page 396:
Anatomy, Geometry, Mathematics, Medicine, Sciences An imaginary plane which divides the body into two portions.
A level of existence or development.
- astral plane
- Nettie's stories about her experiences in Africa point out many parallels between the African and American ways of life. Her stories about the African lifestyle and family structure, in particular, point out the sexist and oppressive conditions that women are forced to submit to on a global plane.1982 December 4, Catherine Joseph, “Empowered into Enlightenment”, in Gay Community News, volume 10, number 20, page 8:
A roughly flat, thin, often moveable structure used to create lateral force by the flow of air or water over its surface, found on aircraft, submarines, etc.
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Any of 17 designated ranges of 2¹⁶ (65,536) sequential code points each.
- Derived terms
138 terms
abstract plane, aerospace plane, antiplane, aquaplane, astral plane, axial plane, backplane, bedding plane, biplane, bit plane, bow plane, Bragg plane, capping plane, Cartesian plane, centerplane, chase plane, compass plane, control plane, convexoplane, coordinate plane, coplane, data plane, datum plane, death plane, divisional plane, doomsday plane, ecliptic plane, eigenplane, emotional plane, equatorial plane, Euclidean plane, fairwater plane, false plane tree, Fano plane, fault plane, fighter plane, focal plane, forwarding plane, fracture plane, Frankfurt plane, ghost plane, gliding plane, gutter plane, half-plane, horizontal plane, hyperbolic plane, hyperplane, inclined plane, inplane, in-plane switching, interplane, intraplane, invariable plane, jack plane, jet plane, jointer plane, land the plane, Laplace plane, lead plane, London plane, London plane tree, mail plane, mainplane, median plane, mental plane, mesial plane, microplane, midplane, monoplane, Moufang plane, multiplane, nonplane, oblique plane, omniplane, orbital plane, paper plane, phase plane, phylloplane, physical plane, picture plane, plan ahead, planal, planation, plane angle, plane curve, plane fright, plane geometry, plane graph, plane iron, plane joint, planelike, plane-mate, plane mirror, plane of ecliptic, plane of existence, plane of insertion, plane of symmetry, plane-parallel, plane polarized light, plane sailing, planeswalker, plane table, plane tree, planetree, plane wave, planigon, projective plane, proof plane, quadruplane, rabbet plane, radical plane, real projective plane, reed plane, reglet plane, rhizoplane, rocket plane, scaleboard plane, sesquiplane, sniffer plane, spaceplane, spiritual plane, S plane, spotter plane, spy plane, stern plane, subplane, superplane, symmetry plane, tangent plane, time plane, transaxial plane, transpyloric plane, triplane, user plane, view plane, waterplane, X-plane, zoo plane- Hyponyms
- real plane, complex plane, coronal plane, frontal plane, sagittal plane, transverse plane, astral plane, diving plane, BMP, PUP, SIP, SMP, SPUA, SSP, supplementary plane, TIP