European wildcat vs Felis silvestris

European wildcat and Felis silvestris both are nouns.

Word	Noun	Adjective	Verb	Adverb
European wildcat	Yes	No	No	No
Felis silvestris	Yes	No	No	No

As nouns, European wildcat and Felis silvestris are synonyms defined as:

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

Other synonyms of European wildcat include catamountain.

European wildcat (noun)	Felis silvestris (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