• WordNet 3.6
    • n foulmart dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened
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Century Dictionary and Cyclopedia
    • n foulmart An old name of the fitchew or polecat, Putorius vulgaris; literally, foul or stinking marten: so called from its offensive odor. Set polecat.
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In literature:

By my troth, I 'll ferret out the foulmarts either by force or guile.
"Traditions of Lancashire, Volume 1 (of 2)" by John Roby