limbus vs anatomical structure

limbus and anatomical structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
limbus	Yes	No	No	No
anatomical structure	Yes	No	No	No

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

limbus: a border or edge of any of various body parts distinguished by color or structure
anatomical structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of limbus include bodily structure, body structure, complex body part, structure.

limbus (noun)	anatomical structure (noun)
a border or edge of any of various body parts distinguished by color or structure	a particular complex anatomical part of a living thing and its construction and arrangement