2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) .2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) . Smart: Textbook on Spherical Astronomy (6th ed.) . Sommerville: Analytical Conics (3rd ed.) . The terrestrial descriptor is added so as to distinguish it from a celestial meridian. In common parlance, a terrestrial meridian is usually referred to as just a meridian. However, this definition is less convenient. Some sources recognise a (terrestrial) meridian to be a complete great circle passing through both of Earth's poles. The principal meridian is the meridian of Earth which passes through the Royal Observatory in Greenwich, Greater London, England, which is used as the internationally-recognised $0 \degrees$ reference longitude meridian. Meridian was developed by the founders of Spotlight Mobile, an award-winning mobile-app development firm known for their app for Barnes & Noble, American Museum of Natural History, Conde Nast and Nike.A (terrestrial) meridian is a semi-great circle on Earth's surface whose endpoints are Earth's poles. And app developers can use Meridian’s SDKs to add indoor navigation and indoor positioning to existing apps. Within minutes, enterprise customers can use the Meridian Editor’s AppMaker to build a full-featured app with turn-by-turn directions, add multimedia and integrate with third-party features. Supporting Meridian deployment is the location-based services industry’s first content management system, Meridian Editor. Customers include Macy’s, New York City subway system, American Museum of Natural History, Boston Children’s Hospital, Intel and the Venetian hotel-resort-casino. Retailers, hospitals, museums, subways, corporate campuses and other venues use the Meridian’s platform to build indoor-GPS apps to engage with their visitors. (“Meridian”) is an enterprise mobile software company for location-based businesses. I’ve touch’d the highest point of all my greatness,ĬrunchBase Rate this definition: 0.0 / 0 votes The particular place or state of any thing.Īll other knowledge merely serves the concerns of this life, and is fitted to the meridian thereof: they are such as will be of little use to a separate soul. In telescope: Astronomical transit instruments The observer’s meridian is a great circle on the celestial sphere that passes through the north and south points of the horizon as well as through the zenith of the observer. The Sun or Moon, rising or setting, our idea represents bigger than when on the meridian. The true meridian is a circle passing through the poles of the world, and the zenith or vertex of any place, exactly dividing the East from the West. The line drawn from North to South, which the Sun crosses at noon. Extended from North to South.Ĭompare the meridian line afforded by magnetical needles with one mathematically drawn, and observe the variation of the needle, or its declination from the true meridian line.Įtymology: meridien, French meridies, Lat. Which now sat high in his meridian tow’r. Lay pleasant, his griev’d look he fixes sad Sometimes tow’rds heav’n, and the full blazing Sun, Sometimes tow’rds Eden, which now in his view Samuel Johnson's Dictionary Rate this definition: 0.0 / 0 votes
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