| 1. | noxious, objectionable, or disgusting animals collectively, esp. those of small size that appear commonly and are difficult to control, as flies, lice, bedbugs, cockroaches, mice, and rats. |
| 2. | an objectionable or obnoxious person, or such persons collectively. |
| 3. | animals that prey upon game, as coyotes or weasels. |

vermin ver·min (vûr'mĭn)
n. pl. vermin
Any of various small animals or insects, such as rats or cockroaches, that are destructive, annoying, or injurious to health.