Nadir

Diagram showing the relationship between the zenith, the nadir, and different types of horizon. Note that the zenith is opposite the nadir.

The nadir[a][b] is the direction pointing directly below a particular location; that is, it is one of two vertical directions at a specified location, orthogonal to a horizontal flat surface.

The direction opposite of the nadir is the zenith.


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  1. ^ "Arabic Dictionary Online Translation LEXILOGOS >>". www.lexilogos.com.