[ver.min] n, pl vermin [ME, fr. MF, fr. (assumed) VL verminum, fr. L verminare to be infested with maggots, have racking pains, fr. vermina racking pains] (14c) 1 a: small common harmful or objectionable animals (as lice or fleas) that are difficult to control b: birds and mammals that prey on game c: animals that at a particular time and place compete (as for food) with humans or domestic animals
2: an offensive person