Diameter

4 definitions found

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

  Diameter \Di*am"e*ter\, n. [F. diam[`e]tre, 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]

From WordNet (r) 2.0 [wn]:

  diameter
       n 1: the length of a straight line passing through the center of
            a circle and connecting two points on the circumference
            [syn: {diam}]
       2: a straight line connecting the center of a circle with two
          points on its perimeter (or the center of a sphere with
          two points on its surface)

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  89 Moby Thesaurus words for "diameter":
     air line, amplitude, area, axis, beeline, bigness, bisector, body,
     bore, boundary, breadth, bulk, caliber, center, chord, core,
     coverage, depth, diagonal, diaphragm, dimension, dimensions,
     direct line, directrix, divider, edge, equator, expanse, expansion,
     extension, extent, gauge, girth, great-circle course, greatness,
     halfway mark, heart, height, interior, kernel, largeness, length,
     line of demarcation, magnitude, mass, mean, measure, measurement,
     median, middle, midmost, midriff, midst, normal, nucleus,
     partition, perpendicular, proportion, proportions, radius,
     radius vector, range, reach, right line, scale, scope, secant,
     segment, semidiameter, shortcut, side, size, spread, straight,
     straight course, straight line, straight stretch, straightaway,
     streamline, tangent, thick, thick of things, transversal, vector,
     volume, waist, waistline, width, zone
  
  

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  diameter
       
          The diameter of a {graph} is the maximum value of the minimum
          distance between any two nodes.