mountain paca vs rodent

mountain paca and rodent both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountain paca	Yes	No	No	No
rodent	Yes	No	No	No

As nouns, rodent is a hypernym of mountain paca; that is, rodent is a word with a broader meaning than mountain paca:

mountain paca: rodent of mountains of western South America
rodent: relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing

Other hypernyms of mountain paca include gnawer.

mountain paca (noun)	rodent (noun)
rodent of mountains of western South America	relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing