The Collaborative International Dictionary of English v.0.48:

Tureen \Tu*reen"\, n. [F. terrine, L. terra earth. See
   Terrace.]
   A large, deep vessel for holding soup, or other liquid food,
   at the table. [Written also terreen.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

tureen
    n 1: large deep serving dish with a cover; for serving soups and
         stews