noun
Usage: often capitalized A&C
: the parallel of latitude that is approximately 66 1/2° north of the equator and that circumscribes the northern frigid zone — see zone illustration
noun
Usage: often capitalized A&C
: the parallel of latitude that is approximately 66 1/2° north of the equator and that circumscribes the northern frigid zone — see zone illustration
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012