unguis vs anatomical structure

unguis and anatomical structure both are nouns.

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

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

unguis: any rigid body structure composed primarily of keratin
anatomical structure: a particular complex anatomical part of a living thing and its construction and arrangement

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

unguis (noun)	anatomical structure (noun)
any rigid body structure composed primarily of keratin	a particular complex anatomical part of a living thing and its construction and arrangement