fixate vs fixation

fixate is not a noun while fixation is a noun.

Word	Noun	Adjective	Verb	Adverb
fixate	No	No	Yes	No
fixation	Yes	No	No	No

fixate (noun)	fixation (noun)
	(histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body
	the activity of fastening something firmly in position
	an unhealthy and compulsive preoccupation with something or someone
	an abnormal state in which development has stopped prematurely

fixate (verb)	fixation (verb)
become fixed (on)
make fixed, stable or stationary
pay attention to exclusively and obsessively
attach (oneself) to a person or thing in a neurotic way