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

conjugate \con"jugate\, a. l. conjugatus, p. p. or conjugare
   to unite; con- + jugare to join, yoke, marry, jugum yoke;
   akin to jungere to join. see join.
   1. united in pairs; yoked together; coupled.
      1913 webster

   2. bot. in single pairs; coupled.
      1913 webster

   3. chem. containing two or more compounds or radicals
      supposed to act the part of a single one. r.
      1913 webster

   4. gram. agreeing in derivation and radical signification;
      -- said of words.
      1913 webster

   5. math. presenting themselves simultaneously and having
      reciprocal properties; -- frequently used in pure and
      applied mathematics with reference to two quantities,
      points, lines, axes, curves, etc.
      1913 webster

   conjugate axis of a hyperbola math., the line through the
      center of the curve, perpendicular to the line through the
      two foci.

   conjugate diameters conic sections, two diameters of an
      ellipse or hyperbola such that each bisects all chords
      drawn parallel to the other.

   conjugate focus opt. see under focus.

   conjugate mirrors optics, two mirrors so placed that rays
      from the focus of one are received at the focus of the
      other, especially two concave mirrors so placed that rays
      proceeding from the principal focus of one and reflected
      in a parallel beam are received upon the other and brought
      to the principal focus.

   conjugate point geom., an acnode. see acnode, and
      double point.

   self-conjugate triangle conic sections, a triangle each
      of whose vertices is the pole of the opposite side with
      reference to a conic.
      1913 webster
see also:
join conjugate axis of a hyperbola conjugate diameters conjugate focus focus conjugate mirrors 
conjugate point acnode double point self-conjugate triangle 

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

diameter \diam"eter\, n. f. diam`etre, l. diametros, fr.
   gr. ?; dia` through + ? measure. see meter.
   1. geom.
      a any right line passing through the center of a figure
          or body, as a circle, conic section, sphere, cube,
          etc., and terminated by the opposite boundaries; a
          straight line which bisects a system of parallel
          chords drawn in a curve.
      b a diametral plane.
          1913 webster

   2. the length of a straight line through the center of an
      object from side to side; width; thickness; as, the
      diameter of a tree or rock.
      1913 webster

   note: in an elongated object the diameter is usually taken at
         right angles to the longer axis.
         1913 webster

   3. arch. the distance through the lower part of the shaft
      of a column, used as a standard measure for all parts of
      the order. see module.
      1913 webster

   conjugate diameters. see under conjugate.
      1913 webster
see also:
meter module conjugate diameters conjugate 

Conjugate >> C Words
Conjugate, definition of term: Conjugate
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