abducent vs abducting

abducent is a noun but abducting is not a noun.

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

As adjectives, abducent and abducting are synonyms defined as:

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

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

abducent (adjective)	abducting (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