Definition of nadir

Definition of nadir
  1. nadir 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.
  2. nadir Noun The lowest point; time of greatest depression.
  3. nadir Noun The axis of a projected conical shadow; the direction of the force of gravity at a location; down.
  4. nadir Noun An empty box added beneath a full one in a beehive to give the colony more room to expand or store honey.
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