from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The Arctic Circle.
- n. The Antarctic Circle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the two parallels of the Earth located at the latitude of 66° 33′ 44″ N and 66° 33′ 44″ S.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a line of latitude at the north or south poles
Sorry, no etymologies found.
Between the polar circle and the tropic, the cetaceous animals of the ocean grow to the length of 50, 80, or 100 feet, (Hist. des Voyages, tom.xv. p. 289.