grasping vs prehensile

grasping is a noun but prehensile is not a noun.

Word	Noun	Adjective	Verb	Adverb
grasping	Yes	Yes	No	No
prehensile	No	Yes	No	No

As adjectives, grasping and prehensile are synonyms defined as:

Other synonyms of grasping include avaricious, covetous, grabby, greedy.

grasping (noun)	prehensile (noun)
the act of gripping something firmly with the hands (or the tentacles)
understanding with difficulty

grasping (adjective)	prehensile (adjective)
immoderately desirous of acquiring e.g. wealth	adapted for grasping especially by wrapping around an object
	immoderately desirous of acquiring e.g. wealth
	having a keen intellect