Defn: 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.

ZONE
Zone, v. t.

Defn: To girdle; to encircle. [R.] Keats.

ZONED
Zoned, a.

1. Wearing a zone, or girdle. Pope.

2. Having zones, or concentric bands; striped.

3. (Bot.)

Defn: Zonate.

ZONELESS
Zone"less, a.