silver-tip vs Ursus arctos

silver-tip and Ursus arctos both are nouns.

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

As nouns, Ursus arctos is a hypernym of silver-tip; that is, Ursus arctos is a word with a broader meaning than silver-tip:

silver-tip: powerful brownish-yellow bear of the uplands of western North America
Ursus arctos: large ferocious bear of Eurasia

Other hypernyms of silver-tip include brown bear, bruin.

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