ver ‧ min /ˈvɜːmən, ˈvɜːmɪn $ ˈvɜːr-/ BrE AmE noun [plural]
[ Date: 1200-1300 ; Language: Old French ; Origin: Latin vermen 'worm' ]
1 . small animals, birds, and insects that are harmful because they destroy crops, spoil food, and spread disease:
The beds were filthy and full of vermin.
Foxes are considered vermin.
2 . unpleasant people who cause problems for society