entozoan vs entozoic

entozoan is a noun but entozoic is not a noun.

Word	Noun	Adjective	Verb	Adverb
entozoan	Yes	Yes	No	No
entozoic	No	Yes	No	No

As adjectives, entozoan and entozoic are synonyms defined as:

entozoan and entozoic: living within a living animal usually as a parasite

Other synonyms of entozoan include endozoic.

entozoan (noun)	entozoic (noun)
any of various parasites that live in the internal organs of animals (especially intestinal worms)

entozoan (adjective)	entozoic (adjective)
living within a living animal usually as a parasite	living within a living animal usually as a parasite
of or relating to entozoa