depress vs depressor

depress is not a noun while depressor is a noun.

Word	Noun	Adjective	Verb	Adverb
depress	No	No	Yes	No
depressor	Yes	No	No	No

depress (noun)	depressor (noun)
	a device used by physician to press a part down or aside
	any skeletal muscle that draws a body part down
	any nerve whose activity tends to reduce the activity or tone of the body part it serves

depress (verb)	depressor (verb)
lessen the activity or force of
press down
cause to drop or sink
lower someone's spirits; make downhearted
lower (prices or markets)