costa vs body structure

costa and body structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
costa	Yes	No	No	No
body structure	Yes	No	No	No

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

costa: a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)
body structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of costa include anatomical structure, bodily structure, complex body part, structure.

costa (noun)	body structure (noun)
any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)	a particular complex anatomical part of a living thing and its construction and arrangement
a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)