foulmart vs polecat

foulmart and polecat both are nouns.

Word	Noun	Adjective	Verb	Adverb
foulmart	Yes	No	No	No
polecat	Yes	No	No	No

As nouns, foulmart and polecat are synonyms defined as:

foulmart and polecat: dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened

Other synonyms of foulmart include fitch, foumart, Mustela putorius.

foulmart (noun)	polecat (noun)
dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened	dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened
	American musteline mammal typically ejecting an intensely malodorous fluid when startled; in some classifications put in a separate subfamily Mephitinae