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nadir    音标拼音: [n'edɚ]
n. 天底,最底点,最低点

天底,最底点,最低点

nadir
n 1: an extreme state of adversity; the lowest point of anything
[synonym: {nadir}, {low-water mark}]
2: the point below the observer that is directly opposite the
zenith on the imaginary sphere against which celestial bodies
appear to be projected [ant: {zenith}]

Nadir \Na"dir\ (n[=a]"d[~e]r), n. [F., Sp., & It. nadir; all fr.
Ar. naz[imac]ru's samt nadir, prop., the point opposite the
zenith (as samt), in which naz[imac]r means alike,
corresponding to. Cf. {Azimuth}, {Zenith}.]
1. That point of the heavens, or lower hemisphere, directly
opposite the zenith; the inferior pole of the horizon; the
point of the celestial sphere directly under the place
where we stand.
[1913 Webster]

2. The lowest point; the time of greatest depression.
[1913 Webster]

The seventh century is the nadir of the human mind
in Europe. --Hallam.
[1913 Webster]

{Nadir of the sun} (Astron.), the axis of the conical shadow
projected by the earth. --Crabb.
[1913 Webster]

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  • Nadir - Wikipedia
    A nadir image is a satellite image or aerial photo of the Earth taken vertically A satellite ground track represents its orbit projected to nadir on to Earth's surface
  • NADIR Definition Meaning - Merriam-Webster
    The meaning of NADIR is the point of the celestial sphere that is directly opposite the zenith and vertically downward from the observer How to use nadir in a sentence Nadir Has Arabic Roots
  • NADIR | English meaning - Cambridge Dictionary
    NADIR definition: 1 the worst moment, or the moment of least hope and least achievement: 2 the point at which… Learn more
  • Nadir | Definition Astronomy | Britannica
    nadir, a term used in astronomy for the point in the heavens exactly opposite to the zenith, the zenith and nadir being the two poles of the horizon That is, the zenith is directly overhead, the nadir directly underfoot
  • NADIR Definition Meaning | Dictionary. com
    Nadir definition: the point on the celestial sphere directly beneath a given position or observer and diametrically opposite the zenith See examples of NADIR used in a sentence
  • NADIR definition and meaning | Collins English Dictionary
    The nadir of something such as someone's career or the history of an organization is its worst time This year was the nadir of his presidency American English : nadir ˈneɪdər
  • Zenith vs. Nadir — What’s the Difference?
    Zenith is the highest point directly above an observer in the sky, representing peak positions, while nadir is the lowest point, directly opposite the zenith, symbolizing lowest positions or phases





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