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.
Note: The zones, or life zones, commonly recognized for North
America are Arctic, Hudsonian, Canadian, Transition,
Upper Austral, Lower Austral, and Tropical.
2. (Cryst.) A series of faces whose intersection lines with
each other are parallel.
3. (Railroad Econ.)
(a) The aggregate of stations, in whatsoever direction or
on whatsoever line of railroad, situated between
certain maximum and minimum limits from a point at
which a shipment of traffic originates.
(b) Any circular or ring-shaped area within which the
street-car companies make no differences of fare.
4. In the United States parcel-post system, any of the areas
about any point of shipment for which but one rate of
postage is charged for a parcel post shipment from that
point. The rate increases from within outwards. The first
zone includes the unit of area ``(a quadrangle 30 minutes
square)'' in which the place of shipment is situated and
the 8 contiguous units; the outer limits of the second to
the seventh zones, respectively, are approximately 150,
300, 600, 1000, 1400, and 1800 miles from the point of
shipment; the eighth zone includes all units of area
outside the seventh zone.