cutting off vs abscission

cutting off and abscission both are nouns.

Word	Noun	Adjective	Verb	Adverb
cutting off	Yes	No	No	No
abscission	Yes	No	No	No

As nouns, cutting off and abscission are synonyms defined as:

cutting off (noun)	abscission (noun)
the act of shortening something by chopping off the ends	the act of cutting something off
the act of cutting something off	shedding of flowers and leaves and fruit following formation of scar tissue in a plant