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

problem \prob"lem\, n. f. probl`eme, l. problema, fr. gr. ?
   anything thrown forward, a question proposed for solution,
   fr. ? to throw or lay before; ? before, forward + ? to throw.
   cf. parable. 
   1913 webster
   1. a question proposed for solution; a matter stated for
      examination or proof; hence, a matter difficult of
      solution or settlement; a doubtful case; a question
      involving doubt. --bacon.
      1913 webster

   2. math. anything which is required to be done; as, in
      geometry, to bisect a line, to draw a perpendicular; or,
      in algebra, to find an unknown quantity.
      1913 webster

   note: problem differs from theorem in this, that a problem is
         something to be done, as to bisect a triangle, to
         describe a circle, etc.; a theorem is something to be
         proved, as that all the angles of a triangle are equal
         to two right angles.
         1913 webster

   plane problem geom., a problem that can be solved by the
      use of the rule and compass.

   solid problem geom., a problem requiring in its geometric
      solution the use of a conic section or higher curve.
      1913 webster problematic
see also:
parable plane problem solid problem 

Plane >> P Words
Plane, definition of term: Plane
plane_pag1.html

Plane Table >> P Words
Plane Table, definition of term: Plane Table
plane+table_pag1.html

Jack Plane >> J Words
Jack Plane, definition of term: Jack Plane
jack+plane_pag1.html

Inclined Plane >> I Words
Inclined Plane, definition of term: Inclined Plane
inclined+plane_pag1.html

Health Problem >> H Words
Health Problem, definition of term: Health Problem
health+problem_pag1.html

Ground Plane >> G Words
Ground Plane, definition of term: Ground Plane
ground+plane_pag1.html