Ursus horribilis vs silver-tip

Ursus horribilis and silver-tip both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ursus horribilis	Yes	No	No	No
silver-tip	Yes	No	No	No

As nouns, Ursus horribilis and silver-tip are synonyms defined as:

Ursus horribilis and silver-tip: powerful brownish-yellow bear of the uplands of western North America

Other synonyms of Ursus horribilis include grizzly, grizzly bear, silvertip, Ursus arctos horribilis.

Ursus horribilis (noun)	silver-tip (noun)
powerful brownish-yellow bear of the uplands of western North America	powerful brownish-yellow bear of the uplands of western North America