The meridian (line of longitude) passing through Royal Greenwich Observatory, Greenwich, England is called the prime meridian (longitude = 0 degrees).. Search the meaning and definition of over one hundred thousand words! See more. The Equator is at 0° latitude. See the fact file below for more information on the prime meridian: The Prime Meridian divides the Earth into East/West from the North Pole to the South Pole with an imaginary line along the longitude line of 0°. : And it's where time itself starts, being the site of the prime meridian, Greenwich Mean Time or degrees longitude, depending on what you prefer. If you are planning to study Geography, there are a number of facts and definitions you are going to want to familiarize yourself with. Definition of meridian written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. Together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great circle.This great circle divides a spheroid, e.g., Earth, into two hemispheres. Find out more with Bitesize KS2 Geography. Dictionary Definitions; Prime-meridian Prime-meridian meaning. The home of the Prime Meridian, the central line used to measure distance across the world, since 1714, in 1884, Sir George Biddell Airy built the “Transit Circle” telescope that defined the exact location of the meridian. It is generally known as zero degrees longitude or vertical line of reference in […] This is a worksheet I created to assess my students' understanding of map skills. The IRM is the only meridian that may now be described as the prime meridian of the world, as it defines 0 ° longitude by international agreement. Time zones are divided by imaginary lines called meridians which run from the North Pole to the South Pole. However, there is an international agreement that the meridian that runs through Greenwich, England, is considered the official prime meridian. Learn Prime meridian facts for kids. The offset is expressed as either UTC- or UTC+ and the number of hours and minutes. The Prime Meridian runs through Greenwich, England and is at 0° longitude. Prime meridian (English to Korean translation). *meridian* a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles; in astronomy, a circle passing through the celestial poles and the zenith of a given place on the earth's surface.Recorded from late Middle English, the word comes via Old Fr The Equator separates the Northern and Southern Hemispheres. It is also commonly known as the Greenwich Meridian and is a component that forms the International Date Line, which then divides the Western and Eastern Hemispheres of the Earth. Ptolemy was free, however, to lay his prime meridian, the zero-degree longitude line, wherever he liked. The prime meridian of longitude is in Greenwich, South London. A prime meridian is the meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. The prime meridian is the line of 0 longitude, the starting point for measuring distance both east and west around the Earth. The lines of longitude and latitude are used to identify locations on the globe. The Prime Meridian is an imaginary line that, similar to the equator, divides the earth into eastern and western hemispheres. To help locate where a place is in the world, people use imaginary lines called latitude and longitude. A prime meridian is a meridian (a line of longitude) in a geographical coordinate system at which longitude is defined to be 0°. Translate Prime meridian to English online and download now our free translation software to use at any time. Unlike the Equator’s position that is determined by the Earth’s rotational axis, the position of the Prime Meridian has been defined arbitrarily over the years as Greenwich in the United Kingdom. The Equator and Prime Meridian. The Prime Meridian separates the Eastern and Western Hemispheres. 3. The Equator and Prime Meridian are circles that stretch all the way around the Earth.. Synonyms for prime meridian in Free Thesaurus. The prime meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. A prime meridian is a meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. The Martian Prime Meridian -- Longitude 'Zero' On Earth, the longitude of the Royal Observatory in Greenwich, England is defined as the "prime meridian," or the zero point of longitude. Locations on Earth are measured in degrees east or west from this position. Antonyms for prime meridian. Meridian (geography) synonyms, Meridian (geography) pronunciation, Meridian (geography) translation, English dictionary definition of Meridian (geography). It is the longitudinal meridian of reference. The meridian was agreed upon in October 1884.At the behest of the President of the United States of America, 41 delegates from 25 nations met in Washington, DC, USA for the International Meridian Conference. Interactive Time Zone Map There is an imaginary line running through the UK called the Prime Meridian. 2 words related to prime meridian: line of longitude, meridian. Prime meridian definition, the meridian running through Greenwich, England, from which longitude east and west is reckoned. The Prime Meridian is the meridian defined as 0°00’00” longitude. Prime Meridian Definition for Kids. Absolute Location vs Relative Location: Absolute Location: describes the exact position of a point, often using latitude and longitude “Kenya’s latitude and longitude is 1° 00′ N and 38° 00′ E; that is 1° north of the equator, and 38° east of the prime meridian.”. The placement of the prime meridian is a purely pol Dictionary ! It was first established by Sir George Airy in 1851, and by 1884, over two-thirds of all ships and tonnage used it as the reference meridian on their charts and maps. This great circle divides the … On the earliest charts displaying a longitude scale, the prime meridian passed through the Canaries. 13 sentence examples: 1. Relative Location: finds the location of a place using other surrounding places, or by using cardinal directions The prime meridian is arbitrary, meaning it could be chosen to be anywhere. What are synonyms for prime meridian? Any line of longitude (a meridian) can serve as the 0 longitude line. The crosshairs of the eyepiece sit exactly at 0-degrees longitude and defines the Prime Meridian for the world. Together, a prime meridian and its antimeridian (the 180th meridian in a 360°-system) form a great circle. Definition of prime meridian written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. The prime meridian is arbitrary, meaning it could be chosen to be anywhere.Any line of longitude (a meridian) can serve as the 0 longitude line. The prime meridian is a line of geographical longitude that is defined at 0°. 2. The true prime meridian of the world, as agreed by every nation on the planet in 1984, is the IERS Reference Meridian, which is also known as the International Reference Meridian or IRM. UTC time changes 1 hour forward and backward corresponding to a 1-hour difference in mean solar time for every 15 degrees east or west of the prime meridian (0° longitude) in Greenwich, London, United Kingdom. It is sometimes referred to as the Greenwich Meridian. Greenwich meridian, imaginary line used to indicate 0° longitude that passes through Greenwich, a borough of London, and terminates at the North and South poles. : The prime meridian is the line that separates geographic east from west on the globe. There are 10 multiple choice questions which cover the equator, prime meridian, latitude, & longitude and can be used as a quiz, test, or additional practice. The prime meridian is considered as the middle point of earth. Menu. 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