Definition of Antarctic Circle written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. The Antarctic Circle is a non-commercial forum and resource on historical, literary, bibliographical, artistic and cultural aspects of Antarctica and the South Polar regions. “Antarctic circle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antarctic%20circle. Definition of Antarctic in the Definitions.net dictionary. He's making a quiz, and checking it twice... Test your knowledge of the words of the year. Antarctic Circle - WordReference English dictionary, questions, discussion and forums. Mirages on the Antarctic continent tend to be even more spectacular than in Arctic regions, creating, for example, a series of apparent sunsets and sunrises while in reality the sun remains below the horizon. South of the magnetic equator the south end of the needle is always inclined downwards, and there is a spot within the Antarctic Circle (148° E. A simple, practical boundary between the three oceans can be … All Free. Antarctic Circle is of interest to WikiProject Geographical coordinates, ... so I would assume that the antarctic circle has a similar definition. Meaning of antarctic circle. This imaginary circle is the southernmost latitude in the Northern Hemisphere where the sun can remain above or below the horizon for 24 hours (June 21st and December 21st). Latitudeis the name for imaginary lines that circle horizontally (side-to-side) around the Earth. The Antarctic circle is depicted as a red line at the bottom of the globe. Antarctic circle definition is - the parallel of latitude that is approximately 661/2 degrees south of the equator and that circumscribes the southern frigid zone. Definition of the-antarctic-circle noun in Oxford Advanced Learner's Dictionary. [7] Most of the continent of Antarctica is within the Antarctic Circle. What does Antarctic mean? The position of the Antarctic Circle is not fixed and currently runs 66°33′48.4″ south of the Equator. Definition and synonyms of the Antarctic Circle from the online English dictionary from Macmillan Education.. Starting at the prime meridian and heading eastwards, the Antarctic Circle passes through: NB: This refers to the true geometric centre which actually appears higher in the sky because of refraction by the atmosphere. Information and translations of Antarctic in the most comprehensive dictionary definitions resource on the web. 'Nip it in the butt' or 'Nip it in the bud'. Antarctic Circle The line which marks approximately the northernmost place in the Southern Hemisphere where the sun does not set on the summer solstice and does not rise on the winter solstice. What made you want to look up antarctic circle? See more. The Antarctic Circle definition is - an imaginary line that goes around the Earth near the South Pole. The Antarctic Circle is one of the five major circles of latitude that mark maps of the Earth. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Crossing the Antarctic Circle which is at 66° 33'S brings passengers into the zone where there is 24-hours of daylight.. Newswire Today - Free Newswire - Press Releases Distribution. Most people chose this as the best definition of antarctica: A continent lying chiefly... See the dictionary meaning, pronunciation, and sentence examples. Arctic circle definition, an imaginary line drawn parallel to the equator, at 23°28prime; S of the North Pole: between the North Frigid Zone and the North Temperate Zone. [3] Its latitude depends on the Earth's axial tilt , which fluctuates within a margin of more than 2° over a 41,000-year period, due to tidal forces resulting from the orbit of the Moon . The Arctic and Antarctic Circles are very important on Earth maps. Antarctic circle definition, an imaginary line drawn parallel to the equator, at 23° 28prime; N of the South Pole: between the South Frigid Zone and the South Temperate Zone. Latitude is measured in degrees, which is indicated by th… If you were a sailor on the ocean over 2,000 years ago, you wouldn't have maps or computers to help you figure out where you were; you'd learn to use to the stars to help guide you. The Arctic Circle is at a latitude of 66.5 degrees north of the Equator. Proper noun . The parallel of latitude 66° 33ʹ south of the equator. According to [[Sunrise],] "Sunrise is the moment when the upper limb of the Sun appears on the horizon". Antarctic Circle. Collins English Dictionary. It marks the southernmost point at which the sun is visible on the southern winter solstice and the northernmost point at which the midnight sun can be seen on the southern summer solstice. [3] Consequently, the Antarctic Circle is currently drifting southwards at a speed of about 15 m (49 ft) per year. The Antarctic Circle is one of the five major circles or parallels of latitude that mark maps of the Earth. They did this by measuring latitude. In previous centuries some semi-permanent whaling stations were established on the continent, and some whalers would live there for a year or more. It is the parallel of latitude at 66° 33′ 39″ south of the Equator, crossing mostly the Southern Ocean. Delivered to your inbox! Antarctic Circle, parallel, or line of latitude around the Earth, at 66°30′ S. Antarctic Circle n the imaginary circle around the earth, parallel to the equator, at latitude 66° 32′ S [4] It marks the southernmost point at which the sun is visible on the southern winter solstice and the northernmost point at which the midnight sun can be seen on the southern summer solstice. Where is the Antarctic Circle located? Copyright © … The Antarctic Circle is the northernmost latitude in the Southern Hemisphere at which the centre of the sun can remain continuously above the horizon for twenty-four hours; as a result, at least once each year at any location within the Antarctic Circle the centre of the sun is visible at local midnight, and at least once the centre of the sun is obscured at local noon.[4][5]. Definition of the-arctic-circle noun in Oxford Advanced Learner's Dictionary. Post the Definition of antarctic circle to Facebook, Share the Definition of antarctic circle on Twitter. This special line of latitude is approximately 66¹/₂ degrees south of the equator and outlines the chilly southern zone of … South of the Antarctic Circle, the sun is above the horizon for 24 continuous hours at least once per year (and therefore visible at midnight) and the centre of the sun (ignoring refraction) is below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon); this is also true within the equivalent polar circle in the Northern Hemisphere, the Arctic Circle. Learn a new word every day. https://en.wikipedia.org/w/index.php?title=Antarctic_Circle&oldid=991847206, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 2 December 2020, at 03:10. Accessed 27 Dec. 2020. Arctic Circle: 1 n 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 Example of: polar circle a line of latitude at the north or south poles There is no permanent human population south of the Antarctic Circle, but there are several research stations in Antarctica operated by various nations that are inhabited by teams of scientists who rotate on a seasonal basis. Test Your Knowledge - and learn some interesting things along the way. That is true at sea level; those limits increase with elevation above sea level, although in mountainous regions there is often no direct view of the true horizon. [1] (Actually, this figure is slightly incorrect because it doesn't allow for the effects of Astronomical nutation, which can be up to 10". 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. Please tell us where you read or heard it (including the quote, if possible). The Antarctic Circle is the most southerly of the five major circles of latitude that mark maps of the Earth. The parallel of latitude 66° 33ʹ south of the equator. At least three children have been born in Antarctica, albeit in stations north of the Antarctic Circle. Translations . This is the British English definition of the Antarctic Circle.View American English definition of the Antarctic Circle.. Change your default dictionary to American English. [6] The area south of the Circle is about 20,000,000 km2 (7,700,000 sq mi) and covers roughly 4% of Earth's surface. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Meaning of Antarctic. 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. The Antarctic Circle is a special line of latitude that circles the Earth near the South Pole. Wikipedia . However, because of atmospheric refraction and mirages, and because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the southern summer solstice up to about 50 minutes (′) (90 km (56 mi)) north of the Antarctic Circle; similarly, on the day of the southern winter solstice, part of the sun may be seen up to about 50′ south of the Antarctic Circle. The region south of this circle is known as the Antarctic, and the zone immediately to the north is called the Southern Temperate Zone. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Can you spell these 10 commonly misspelled words? See more. What does antarctic circle mean? Antarctic Circle in British English. It is actually an imaginary line placed to the south of the Equator. [2]) Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of more than 2° over a 41,000-year period, due to tidal forces resulting from the orbit of the Moon. Antarctic Circle. Information and translations of antarctic circle in the most comprehensive dictionary definitions resource on the web. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. The circumference of the Antarctic Circle is roughly 16,000 kilometres (9,900 mi). More from Merriam-Webster on antarctic circle, Nglish: Translation of antarctic circle for Spanish Speakers, Britannica.com: Encyclopedia article about antarctic circle. All the lands between the Antarctic Circle and the South Pole are called Antarctica . The breadth and quantity of its content expands periodically. Antarctic Circle, parallel, or line of latitude around the Earth, at 66°30′ S. Because the Earth’s axis is inclined about 23.5° from the vertical, this parallel marks the northern limit of the area within which, for one day or more each year, at the summer and winter solstices, the Sun… The reason for this phenomenon is that the axis of the earth is tilted by 23.5 degrees. Enrich your vocabulary with the English Definition dictionary geographical line. Directly on the Antarctic Circle these events occur, in principle, exactly once per year: at the December and June solstices, respectively. The Antarctic Circle experiences a period of 24 hours where the Sun is above the horizon during the summer solscice on 21st December. Early sailors used the same instruments as early astronomers to help guide them back home. 'All Intensive Purposes' or 'All Intents and Purposes'? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Antarctic Circle n the imaginary circle around the earth, parallel to the equator, at latitude 66° 32′ S Dictionnaire anglais Collins English definition-Thesaurus This border, that is located at Latitude 66° 33′ South, marks the Antarctic Territory according to one of the definitions. Take a look at this picture of some of the lines of latitude. The position of the Arctic Circle is not fixed and currently runs 66°33′48.4″ north of the Equator . Have you ever wondered about these lines? 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