cingulum vs complex body part

cingulum and complex body part both are nouns.

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

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

cingulum: (anatomy) an encircling structure (as the ridge around the base of a tooth)
complex body part: a particular complex anatomical part of a living thing and its construction and arrangement

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

cingulum (noun)	complex body part (noun)
(anatomy) an encircling structure (as the ridge around the base of a tooth)	a particular complex anatomical part of a living thing and its construction and arrangement