The Collaborative International Dictionary of English v.0.48:

Teeswater \Tees"wa`ter\, n. [From the river Tees, northern
   England.]
   1. A breed of cattle formerly bred in England, but supposed
      to have originated in Holland and to have been the
      principal stock from which the shorthorns were derived.
      [Webster 1913 Suppl.]

   2. An old English breed of sheep allied to the Leicester.
      [Webster 1913 Suppl.]