Arc"tic, a. Etym: [OE. artik, OF. artique, F. arctique, L. arcticus,
fr. Gr. ursus bear, Skr.
Defn: Pertaining to, or situated under, the northern constellation
called the Bear; northern; frigid; as, the arctic pole, circle,
region, ocean; an arctic expedition, night, temperature.
Note: The arctic circle is a lesser circle, parallel to the equator,
23� 28' from the north pole. This and the antarctic circle are called
the polar circles, and between these and the poles lie the frigid
zones. See Zone.