abducting vs abducent

abducting is not a noun while abducent is a noun.

Word	Noun	Adjective	Verb	Adverb
abducting	No	Yes	No	No
abducent	Yes	Yes	No	No

As adjectives, abducting and abducent are synonyms defined as:

abducting and abducent: especially of muscles; drawing away from the midline of the body or from an adjacent part

abducting (noun)	abducent (noun)
	a small motor nerve supplying the lateral rectus muscle of the eye

abducting (adjective)	abducent (adjective)
especially of muscles; drawing away from the midline of the body or from an adjacent part	especially of muscles; drawing away from the midline of the body or from an adjacent part