ferret vs musteline

ferret and musteline both are nouns.

Word	Noun	Adjective	Verb	Adverb
ferret	Yes	No	Yes	No
musteline	Yes	No	No	No

As nouns, musteline is a hypernym of ferret; that is, musteline is a word with a broader meaning than ferret:

ferret: musteline mammal of prairie regions of United States; nearly extinct
musteline: fissiped fur-bearing carnivorous mammals

Other hypernyms of ferret include mustelid, musteline mammal.

ferret (noun)	musteline (noun)
domesticated albino variety of the European polecat bred for hunting rats and rabbits	fissiped fur-bearing carnivorous mammals
musteline mammal of prairie regions of United States; nearly extinct

ferret (verb)	musteline (verb)
search and discover through persistent investigation
hunt with ferrets
hound or harry relentlessly