shedding vs abscission

shedding and abscission both are nouns.

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

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

shedding: 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 shedding include ecdysis, molt, molting, moult, moulting.

shedding (noun)	abscission (noun)
loss of bits of outer skin by peeling or shedding or coming off in scales	the act of cutting something off
the process whereby something is shed	shedding of flowers and leaves and fruit following formation of scar tissue in a plant