[1] : The Collaborative International Dictionary of English v.0.48

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
see also:
plan plane angle plane chart plane curve chart curve 
plane figure plane geometry plane problem plane sailing plane scale 
plane surveying plane table plane trigonometry 

[2] : WordNet (r) 2.0

plane figure
     n : a two-dimensional shape syn: two-dimensional figure
see also:
two-dimensional figure 

Figure >> F Words
Figure, definition of term: Figure
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Figure Out >> F Words
Figure Out, definition of term: Figure Out
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Jack Plane >> J Words
Jack Plane, definition of term: Jack Plane
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Inclined Plane >> I Words
Inclined Plane, definition of term: Inclined Plane
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Ground Plane >> G Words
Ground Plane, definition of term: Ground Plane
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Figure Of Speec >> F Words
Figure Of Speec, definition of term: Figure Of Speec
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