uvea vs complex body part

uvea and complex body part both are nouns.

Word	Noun	Adjective	Verb	Adverb
uvea	Yes	No	No	No
complex body part	Yes	No	No	No

As nouns, complex body part is a hypernym of uvea; that is, complex body part is a word with a broader meaning than uvea:

uvea: the part of the eye that contains the iris and ciliary body and choroid
complex body part: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of uvea include anatomical structure, bodily structure, body structure, structure.

uvea (noun)	complex body part (noun)
the part of the eye that contains the iris and ciliary body and choroid	a particular complex anatomical part of a living thing and its construction and arrangement