sloughing vs abscission

sloughing and abscission both are nouns.

Word	Noun	Adjective	Verb	Adverb
sloughing	Yes	No	No	No
abscission	Yes	No	No	No

As nouns, abscission is a hyponym of sloughing; that is, abscission is a word with a more specific, narrower meaning than sloughing:

sloughing: the process whereby something is shed
abscission: shedding of flowers and leaves and fruit following formation of scar tissue in a plant

Other hyponyms of sloughing include ecdysis, molt, molting, moult, moulting.

sloughing (noun)	abscission (noun)
the process whereby something is shed	the act of cutting something off
	shedding of flowers and leaves and fruit following formation of scar tissue in a plant