Definitions for: Plane

[n] an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"
[n] a carpenter's hand tool with an adjustable blade for smoothing or shaping wood; "the cabinetmaker used a plane for the finish work"
[n] a power tool for smoothing or shaping wood
[n] (mathematics) an unbounded two-dimensional shape; "we will refer to the plane of the graph as the X-Y plane"; "any line joining two points on a plane lies wholly on that plane"
[n] a level of existence or development; "he lived on a worldly plane"
[adj] having a horizontal surface in which no part is higher or lower than another; "a flat desk"; "acres of level farmland"; "a plane surface"
[v] cut slices from; "The machine shaved off fine layers from the piece of wood"
[v] make even or smooth, as with a carpenter's plane
[v] travel on the surface of water

Webster (1913) Definition: Plane, v. i.
Of a boat, to lift more or less out of the water while in
motion, after the manner of a hydroplane; to hydroplane.

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.

Note: The Oriental plane (Platanus orientalis) is a native
of Asia. It rises with a straight, smooth, branching
stem to a great height, with palmated leaves, and long
pendulous peduncles, sustaining several heads of small
close-sitting flowers. The seeds are downy, and
collected into round, rough, hard balls. The Occidental
plane (Platanus occidentalis), which grows to a great
height, is a native of North America, where it is
popularly called sycamore, buttonwood, and
buttonball, names also applied to the California
species (Platanus racemosa).

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.

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

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

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.

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 surface is a straight line; a surface without

2. (Astron.) 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.

3. (Mech.) A block or plate having a perfectly flat surface,
used as a standard of flatness; a surface plate.

4. (Joinery) A tool for smoothing boards or other surfaces of
wood, for forming moldings, etc. It consists of a
smooth-soled stock, usually of wood, from the under side
or face of which projects slightly the steel cutting edge
of a chisel, called the iron, which inclines backward,
with an apperture in front for the escape of shavings; as,
the jack plane; the smoothing plane; the molding plane,

Objective plane (Surv.), the horizontal plane upon which
the object which is to be delineated, or whose place is to
be determined, is supposed to stand.

Perspective plane. See Perspective.

Plane at infinity (Geom.), a plane in which points
infinitely distant are conceived as situated.

Plane iron, the cutting chisel of a joiner's plane.

Plane of polarization. (Opt.) See Polarization.

Plane of projection.
(a) The plane on which the projection is made,
corresponding to the perspective plane in perspective;
-- called also principal plane.
(b) (Descriptive Geom.) One of the planes to which points
are referred for the purpose of determining their
relative position in space.

Plane of refraction or reflection (Opt.), the plane in
which lie both the incident ray and the refracted or
reflected ray.

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 or other piece of wood, by
the use of a plane; as, to plane a plank.

2. To efface or remove.

He planed away the names . . . written on his
tables. --Chaucer.

3. Figuratively, to make plain or smooth. [R.]

What student came but that you planed her path.

Synonyms: aeroplane, airplane, carpenter's plane, even, flat, level, planer, planing machine, shave, sheet, skim, woodworking plane

See Also: accelerator, accelerator pedal, airliner, amphibian, amphibious aircraft, aquaplane, attack aircraft, beading plane, biplane, block plane, bomber, bullnose, bullnosed plane, chamfer plane, circular plane, combination plane, compass plane, cowl, cowling, cut, degree, dovetail plane, edge tool, escape hatch, even, even out, facet plane, fighter, fighter aircraft, fore plane, form, fuel pod, fuselage, gas, gas pedal, glide, gun, hand tool, hangar queen, heavier-than-air craft, hood, hydroplane, jack plane, jet, jet plane, jet-propelled plane, jointer, jointer plane, jointing plane, landing gear, level, level, long plane, match plane, midline, midplane, monoplane, multiengine airplane, multiengine plane, navigation light, openside plane, orbital plane, picture plane, pod, point, power tool, propeller plane, rabbet plane, radar dome, radome, router plane, scrub plane, seaplane, shape, ski-plane, smooth plane, smoothing plane, stage, tangent plane, throttle, tonguing and grooving plane, turbojet, turboprop, windscreen, windshield, wing

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