Campagnol

from The Collaborative International Dictionary of English v.0.48

Campagnol \Cam`pa`gnol"\, n. [F., fr. campagne field.] (Zool.)
   A mouse ({Arvicala agrestis}), called also {meadow mouse},
   which often does great damage in fields and gardens, by
   feeding on roots and seeds.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

fieldmouse \fieldmouse\, field mouse \field mouse\n.
   1. (Zool.) any nocturnal Old World mouse of the genus
      {Apodemus} inhabing woods and fields and gardens.
      [WordNet 1.5]

   2. (Zool.) any mouse inhabiting fields, as the {campagnol}
      and the {deer mouse}. See {Campagnol}, and {Deer mouse}.
      [1913 Webster]