Arctic Circle

The parallel of latitude approximately 66°34′ north, the southern boundary of the North Frigid Zone, marking the approximate limit north of which the sun remains above the horizon all day on the summer solstice.

Arctic Circle

n (Physical Geography) the imaginary circle round the earth, parallel to the equator, at latitude 66° 32′ N; it marks the northernmost point at which the sun appears above the level of the horizon on the winter solstice

Arc′tic Cir′cle

n. an imaginary line drawn parallel to the equator, at 23°28~ S of the North Pole: between the North Frigid Zone and the North Temperate Zone.

Arc·tic Circle

(ärk′tĭk) The parallel of latitude approximately 66°33′ north. It forms the boundary between the North Temperate Zone and the North Frigid Zone.

Arctic Circle

A line of latitude, approximately 66° north of the equator, north of which the Sun does not rise at least one day in winter or set at least one day in summer; the northern hemisphere’s equivalent of the Antarctic Circle.

Thesaurus

Noun

Arctic Circle - a line of latitude near but to the south of the north pole; it marks the northernmost point at which the sun is visible on the northern winter solstice and the southernmost point at which the midnight sun can be seen on the northern summer solstice

Translations

北极圈

Arctic Circle

→ 北极圈zhCN

Arctic Circle

Arctic Circle,

imaginary circle on the surface of the earth at 66 1-2°N latitude, i.e., 23 1-2° south of the North Pole. It marks the northernmost point at which the sun can be seen at the winter solsticesolstice
[Lat.,=sun stands still], in astronomy, either of the two points on the ecliptic that lie midway between the equinoxes (separated from them by an angular distance of 90°).
..... Click the link for more information. (about Dec. 22) and the southernmost point of the northern polar regions at which the midnight sunmidnight sun,
phenomenon in which the sun remains visible in the sky continuously for 24 hr or longer, occurring only in the polar regions. The midnight sun is due to the fact that the plane of the earth's equator is tilted about 23 1-2° to the plane of the ecliptic (the
..... Click the link for more information. is visible.

Arctic Circle

[¦ärd·ik ′sər·kəl] (geodesy) The parallel of latitude 66°32′N (often taken as 66½°N).

Arctic Circle

the imaginary circle round the earth, parallel to the equator, at latitude 66° 32ʹ N; it marks the northernmost point at which the sun appears above the level of the horizon on the winter solstice