What is the meaning of Descender?

A person or thing that descends.

The part of a letter or number that is drawn below the baseline (the bottom of most lowercase letters).

A letter that has such a portion, such as g, j, or in some fonts Q.

A cyclist who excels at fast descents.

A belay device used in rock climbing, or as a fire escape.

to descend (to pass from a higher to a lower place)

to descend (from) (to have as an ancestor)

to descend (from) (to have as an etymon)

to descend

Source: wiktionary.org