- An animal, in general. - A noxious or mischievous animal; especially,
noxious little animals or insects, collectively, as squirrels, rats,
mice, flies, lice, bugs, etc. - Hence, in contempt, noxious human beings.
Meaning of 'vermin' (Princeton's WordNet)
1 . vermin
[ n]
Meaning (1): - any of various small animals or insects that are pests; e.g. cockroaches or rats
Example in sentence:
boys in the village have probably been shooting vermin;
cereals must be protected from mice and other vermin;