silvertip vs Ursus horribilis

silvertip and Ursus horribilis both are nouns.

Word	Noun	Adjective	Verb	Adverb
silvertip	Yes	No	No	No
Ursus horribilis	Yes	No	No	No

As nouns, silvertip and Ursus horribilis are synonyms defined as:

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

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

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