DICT.TW Dictionary Taiwan

 di·am·e·ter /daɪˈæmətɚ/
 直徑,徑

 di·am·e·ter /daɪˈæmətɚ/ 名詞
 直徑,徑

 diameter
 直徑

 diameter
 直徑

 Di·am·e·ter n.
 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.
 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.
 Note: ☞ In an elongated object the diameter is usually taken at right angles to the longer axis.
 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.
 Conjugate diameters. See under Conjugate.
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 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)