delusion vs zoanthropy

delusion and zoanthropy both are nouns.

Word	Noun	Adjective	Verb	Adverb
delusion	Yes	No	No	No
zoanthropy	Yes	No	No	No

As nouns, zoanthropy is a hyponym of delusion; that is, zoanthropy is a word with a more specific, narrower meaning than delusion:

delusion: (psychology) an erroneous belief that is held in the face of evidence to the contrary
zoanthropy: the delusion that you have assumed the form of an animal

delusion (noun)	zoanthropy (noun)
the act of deluding; deception by creating illusory ideas	the delusion that you have assumed the form of an animal
a mistaken or unfounded opinion or idea
(psychology) an erroneous belief that is held in the face of evidence to the contrary