Dolichotis patagonum vs gnawer

Dolichotis patagonum and gnawer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dolichotis patagonum	Yes	No	No	No
gnawer	Yes	No	No	No

As nouns, gnawer is a hypernym of Dolichotis patagonum; that is, gnawer is a word with a broader meaning than Dolichotis patagonum:

Dolichotis patagonum: hare-like rodent of the Pampas of Argentina
gnawer: relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing

Other hypernyms of Dolichotis patagonum include rodent.

Dolichotis patagonum (noun)	gnawer (noun)
hare-like rodent of the Pampas of Argentina	relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing