The Collaborative International Dictionary of English v.0.48:

Sateen \Sat*een"\, n. [Cf. Satin.]
   A kind of dress goods made of cotton or woolen, with a glossy
   surface resembling satin.
   [1913 Webster]

WordNet (r) 3.0 (2006):

sateen
    n 1: a cotton fabric with a satiny finish