The Collaborative International Dictionary of English v.0.48:

Batiste \Ba*tiste"\, n. [F. batiste, from the name of the
   alleged first maker, Baptiste of Cambrai. --Littr['e].]
   Originally, cambric or lawn of fine linen; now applied also
   to cloth of similar texture made of cotton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

batiste
    n 1: a thin plain-weave cotton or linen fabric; used for shirts
         or dresses