Definition for ZONE

ZONE, n. [L. zona; Gr. ζωνη.]

  1. A girdle. An embroider'd zone surrounds her waist. – Dryden.
  2. In geography, a division of the earth, with respect to the temperature of different latitudes. The zones are five; the torrid zone, extending from tropic to tropic 46° 56', or 23° 28' on each side of the equator; two temperate or variable zones, situated between the tropics and polar circles; and two frigid zones, situated between the polar circles and the poles.
  3. Circuit; circumference. – Milton. Ciliary zone, in anatomy, the black impression of the ciliary processes on the vitreous humor of the eye. – Cyc.

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