nadir, low-water mark(noun)

an extreme state of adversity; the lowest point of anything

nadir(noun)

the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected

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.

nadir(Noun)

The lowest point; time of greatest depression.

nadir(Noun)

The axis of a projected conical shadow; the direction of the force of gravity at a location; down.

The nadir of the sun is the axis of the shadow projected by the Earth.

nadir(Noun)

An empty box added beneath a full one in a beehive to give the colony more room to expand or store honey.

nadir(Verb)

To extend (a beehive) by adding an empty box at the base.

Nadir(ProperNoun)

A male given name.

Nadir(noun)

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

Nadir(noun)

the lowest point; the time of greatest depression

Nadir

name given to the part of the heavens directly under our feet, as zenith to that directly over our head.