nadir


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nadir

(nā`dər) [Arab.,=opposite], in astronomy, the point on the celestial spherecelestial sphere,
imaginary sphere of infinite radius with the earth at its center. It is used for describing the positions and motions of stars and other objects. For these purposes, any astronomical object can be thought of as being located at the point where the line of sight
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 directly opposite the zenithzenith,
in astronomy, the point in the sky directly overhead; more precisely, it is the point at which the celestial sphere is intersected by an upward extension of a plumb line from the observer's location.
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, i.e., directly beneath the observer.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

nadir

(nay -deer) The point on the celestial sphere that lies directly beneath an observer and is therefore unobservable. It is diametrically opposite the observer's zenith and with the zenith lies on the observer's meridian.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

Nadir

(religion, spiritualism, and occult)

The nadir is the point in the heavens directly opposite the zenith, which means that it is the point in the heavens on the other side of Earth directly underneath one’s feet. It should be carefully distinguished from the imum coeli, which is the point directly opposite the midheaven.

The Astrology Book, Second Edition © 2003 Visible Ink Press®. All rights reserved.

nadir

[′nā·dər]
(astronomy)
That point on the celestial sphere vertically below the observer, or 180° from the zenith.
(oceanography)
The point on the sea floor that lies directly below the sonar during a survey.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

nadir

nadirclick for a larger image
That point on the celestial sphere directly beneath the observer and directly opposite the zenith (i.e., 180° from the zenith, so that the zenith, nadir, and the center of the earth are in one straight line). Also called a nadir point.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

nadir

the point on the celestial sphere directly below an observer and diametrically opposite the zenith
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
In December 2015, the National Art Museum of Azerbaijan hosted an exhibition of works by People's Artist Nadir Abdurhmanov, timed to his the 90th anniversary.
Pour les avoir cAaAaAeA toyAaAaAeA@s de prAaAaAeA?s, je savais que Nadir AaAaAeA@tait la part f et presque romantique du grand Ali Yata.
The military airport in Lefkoniko is not being operated anymore, Durust said, and Nadir aims to turn it into an imports-exports centre.
The court heard the Syeds had tried to travel to Syria via Turkey in January 2014, but Nadir was stopped from boarding a plane because he was on bail for a public order offence, while Yousaf went no further than Turkey.
Nadir Syed was arrested on November 6 shortly after buying a blade, London's Woolwich Crown Court heard.
Also a lot of collateral agreements and treaties that were signed in the period or letters that were written by the Nadir to Ottoman state, stressed the rightfulness of three caliphs and verbal reprimanded the verbal abusive of them, but their names are associated with polite phrases, such that in the letter of King Nadir Shah to Sultan Mahmoud Khan the phrase of "va A'al-e-Athar al-Akhyar and great companions" is seen And also in the beginning of the letter of King Nadir to Ottoman state, it is seen "peace be upon Mohammad and his holy family and his companions", and also there are some instances that he has tried to stop the Shiite actions and behaviors and some of his behavior have seen on following the Sunni religion.
Nadir argued that the Serious Fraud Office had treated him unjustly.
Polly Peck, a leading stock exchange conglomerate, collapsed in 1990 after Nadir stole money which he sent abroad through a complex series of companies.
But what is less well known are the hidden archaeological and cultural treasures that grace the area at the nearby site at Nadir Hill.
The sentencing of Nadir, who donated pounds 440,000 to the Tories during the 1980s, came a day after he was convicted of stealing pounds 28.8 million from the global business he built from an east London textile company.
An Old Bailey judge said Nadir, 71, stole pounds 28.6million from his Polly Peck empire out of greed.
Nadir had been a wealthy man and had an extravagant lifestyle when he stole pounds 28.8 million from his company Polly Peck International.