- vertical meridian
- الخط-طول العمودي
English-Arabic Medical Dictionary. 2013.
vertical meridian
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Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… … Wikipedia
Meridian Highway Bridge — Official name Meridian Highway Bridge Carries Closed, previously 2 lanes of US 81 Crosses … Wikipedia
meridian — MERIDIÁN, meridiane, s.n., adj. 1. s.n. Fiecare dintre liniile imaginare care rezultă din intersecţia suprafeţei Pământului cu serniplanul sprijinit pe axa geografică, constituind liniile de reper pentru măsurarea longitudinii geografice. ♢… … Dicționar Român
Meridian circle — Groombridge transit circle of 1806 The meridian circle, transit circle, or transit telescope is an instrument for observing the time of stars passing the meridian, at the same time measuring its angular distance from the zenith. The idea of… … Wikipedia
Vertical circle — Azimuth Az i*muth, n. [OE. azimut, F. azimut, fr. Ar. as sum?t, pl. of as samt a way, or perh., a point of the horizon and a circle extending to it from the zenith, as being the Arabic article: cf. It. azzimutto, Pg. azimuth, and Ar. samt al… … The Collaborative International Dictionary of English
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
Vertical circle — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
vertical circle — A great circle of the celestial sphere passing through the celestial poles as well as the observer’s zenith and nadir. Vertical circles are perpendicular to the horizon. The prime vertical circle, or the prime vertical, passes through the east… … Aviation dictionary
meridian circle — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… … The Collaborative International Dictionary of English
meridian — Synonyms and related words: Antarctic Zone, Arctic Circle, Arctic Zone, Frigid Zones, Lambert conformal projection, Mercator projection, Miller projection, Torrid Zone, Tropic of Cancer, Tropic of Capricorn, Variable Zones, acmatic, acme,… … Moby Thesaurus
meridian circle — Astron. a transit instrument provided with a graduated vertical scale, used to measure the declinations of heavenly bodies and to determine the time of meridian transits. Also called circle, transit circle, transit instrument. [1540 50] * * * … Universalium
