chiasm vs bodily structure

chiasm and bodily structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
chiasm	Yes	No	No	No
bodily structure	Yes	No	No	No

As nouns, bodily structure is a hypernym of chiasm; that is, bodily structure is a word with a broader meaning than chiasm:

chiasm: an intersection or crossing of two tracts in the form of the letter X
bodily structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of chiasm include anatomical structure, body structure, complex body part, structure.

chiasm (noun)	bodily structure (noun)
an intersection or crossing of two tracts in the form of the letter X	a particular complex anatomical part of a living thing and its construction and arrangement