Vermin are animals, especially small ones, that are destructive pests.
(noun)An example of vermin are fleas.
See vermin in Webster's New World College Dictionary
noun pl. vermin
Origin: ME < OFr vermine < L vermis, a worm
See vermin in American Heritage Dictionary 4
noun pl. vermin vermin
Origin:
Origin: Middle English
Origin: , from Old French
Origin: , from Vulgar Latin *vermīnum
Origin: , from Latin vermis, worm; see wer-2 in Indo-European roots
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