Definition of "descensional"

To find the sun's oblique descension, descensional difference, western amplitude, and of setting, on any given day, at any given place […]

1810, Edward Bruce, An Introduction to Geography and Astronomy

When this ascensional force loses its force, it is no longer venerated, causing it to lose its momentum further, to stagnate and then becomes descensional.

2017, Patrick West, Get Over Yourself: Nietzsche for Our Times