资料来源 : Webster's Revised Unabridged Dictionary (1913)

Zone \Zone\ (z[=o]n), n. [F. zone, L. zona, Gr. zw`nh; akin to
   zwnny`nai to gird, Lith. j[*u]sta a girdle, j[*u]sti to gird,
   Zend y[=a]h.]
   1. A girdle; a cincture. [Poetic]

            An embroidered zone surrounds her waist. --Dryden.

            Loose were her tresses seen, her zone unbound.
                                                  --Collins.

   2. (Geog.) One of the five great divisions of the earth, with
      respect to latitude and temperature.

   Note: The zones are five: the torrid zone, extending from
         tropic to tropic 46[deg] 56[min], or 23[deg] 28[min] on
         each side of the equator; two temperate or variable
         zones, situated between the tropics and the polar
         circles; and two frigid zones, situated between the
         polar circles and the poles.

               Commerce . . . defies every wind, outrides every
               tempest, and invades.              --Bancroft.

   3. (Math.) The portion of the surface of a sphere included
      between two parallel planes; the portion of a surface of
      revolution included between two planes perpendicular to
      the axis. --Davies & Peck (Math. Dict.)

   4. (Nat. Hist.)
      (a) A band or stripe extending around a body.
      (b) A band or area of growth encircling anything; as, a
          zone of evergreens on a mountain; the zone of animal
          or vegetable life in the ocean around an island or a
          continent; the Alpine zone, that part of mountains
          which is above the limit of tree growth.

   5. (Crystallog.) A series of planes having mutually parallel
      intersections.

   6. Circuit; circumference. [R.] --Milton.

   {Abyssal zone}. (Phys. Geog.) See under {Abyssal}.

   {Zone axis} (Crystallog.), a straight line passing through
      the center of a crystal, to which all the planes of a
      given zone are parallel.