Antarctic Circle

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

Antarctic Circle

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

Antarc′tic Cir′cle

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

Ant·arc·tic Circle

(ănt-ärk′tĭk) The parallel of latitude approximately 66°33′ south. It forms the boundary between the South Temperate Zone and South Frigid Zone.

Antarctic Circle

A line of latitude approximately 66.5° south of the equator; the southern hemisphere’s equivalent of the Arctic Circle.

Thesaurus

Noun

Antarctic Circle - a line of latitude north of the south pole

Translations

Antarctic Circle

Antarctic Circle,

imaginary circle on the surface of the earth at 66 1-2°S lat., i.e., 23 1-2° north of the South Pole. It marks the southernmost 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 June 22) and the northernmost point of the southern 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.

Antarctic Circle

[‚ant′ärd·ik ′sər·kəl] (geodesy) The parallel of latitude approximately 66°32′ south of the Equator.

Antarctic Circle

the imaginary circle around the earth, parallel to the equator, at latitude 66° 32ʹ S; it marks the southernmost point at which the sun appears above the level of the horizon at the winter solstice