Felis silvestris vs catamountain

Felis silvestris and catamountain both are nouns.

Word	Noun	Adjective	Verb	Adverb
Felis silvestris	Yes	No	No	No
catamountain	Yes	No	No	No

As nouns, Felis silvestris and catamountain are synonyms defined as:

Felis silvestris and catamountain: bushy-tailed wildcat of Europe that resembles the domestic cat and is regarded as the ancestor of the domestic cat

Other synonyms of Felis silvestris include European wildcat.

Felis silvestris (noun)	catamountain (noun)
bushy-tailed wildcat of Europe that resembles the domestic cat and is regarded as the ancestor of the domestic cat	bushy-tailed wildcat of Europe that resembles the domestic cat and is regarded as the ancestor of the domestic cat