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Definition of Nadir
1. Noun. An extreme state of adversity; the lowest point of anything.
2. Noun. The point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected.
Group relationships: Celestial Sphere, Empyrean, Firmament, Heavens, Sphere, Vault Of Heaven, Welkin
Antonyms: Zenith
Definition of Nadir
1. n. 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.
Definition of Nadir
1. Proper noun. A male given name. ¹
2. Noun. The point of the celestial sphere, directly opposite the zenith; inferior pole of the horizon; point of the celestial sphere directly under the place where we stand. ¹
3. Noun. (figuratively) The lowest point; time of greatest depression. ¹
4. Noun. (astronomy) The axis of a projected conical shadow; the direction of the force of gravity at a location; down. ¹
5. Noun. (beekeeping archaic) An empty box added beneath a full one in a beehive to give the colony more room to expand or store honey. ¹
6. Verb. (transitive beekeeping) To extend (a beehive) by adding an empty box at the base. ¹
¹ Source: wiktionary.com
Definition of Nadir
1. a point on the celestial sphere [n -S] : NADIRAL [adj]
Medical Definition of Nadir
1. The lowest point, point of greatest adversity or despair. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)