Descending
a.-
Of or pertaining to descent; moving downwards.
those through which the planets descent toward the south.
Descending node (Astron.),
that point in a planet's orbit where it intersects the ecliptic in passing southward.
Descending series (Math.),
a series in which each term is numerically smaller than the preceding one; also, a series arranged according to descending powers of a quantity.
