true meridian

true meridian
A great circle through the geographical poles, distinguished from magnetic meridian, grid meridian, etc. See meridian.

Aviation dictionary. 2014.

Look at other dictionaries:

  • true meridian — A great circle of the earth running through the geographical poles. A meridian according to which the boundary lines of public lands of the United States are to be run in surveying. 43 USC § 751; 12 Am J2d Bound § 10 …   Ballentine's law dictionary

  • Meridian (geography) — This article is about the geographical concept. For other uses, see meridian (disambiguation). The prime meridian at Greenwich, England. Since the adoption of WGS84, the meridian is now a couple of hundred metres or so east of this point A… …   Wikipedia

  • meridian — Adjective: At noon. Noun: A line of longitude, running north and south from pole to pole. See magnetic meridian; principal meridian; true meridian …   Ballentine's law dictionary

  • Meridian (W.I.T.C.H.) — Meridian, also known as Metamoor or Metaworld, is a fictional planet in the comic book series W.I.T.C.H. and in the animated series of the same name. Contents 1 Meridian in the Comics 1.1 Culture and Customs 1.2 Appearance …   Wikipedia

  • Meridian altitude — is an astronomical navigation method of calculating an observer s latitude. Contents 1 Principle 2 Methodology 3 See also 4 References …   Wikipedia

  • Meridian altitude — Altitude Al ti*tude, n. [L. altitudo, fr. altus high. Cf. {Altar}, {Haughty}, {Enhance}.] 1. Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object… …   The Collaborative International Dictionary of English

  • Meridian Lossless Packing — The Meridian Lossless Packing logo The Advanced Resolution logo …   Wikipedia

  • True time — Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …   The Collaborative International Dictionary of English

  • True bearing — Eine rechtweisende Peilung (engl. true bearing, TB) ist definiert als Winkel zwischen rechtweisend Nord (engl. true north, TN) und der Linie Bodensender Flugzeug beziehungsweise Flugzeug Bodensender, gemessen im Uhrzeigersinn. Da hierbei… …   Deutsch Wikipedia

  • true course — noun : the course of a ship or airplane measured with respect to true north * * * Navig. a course whose bearing is given relative to the geographical meridian. Cf. compass course, magnetic course …   Useful english dictionary

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