silver-tip vs Ursus arctos horribilis

silver-tip and Ursus arctos horribilis both are nouns.

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

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

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

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

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