Source : Webster's Revised Unabridged Dictionary (1913)

Poplin \Pop"lin\, n. [F. popeline, papeline.]
   A fabric of many varieties, usually made of silk and worsted,
   -- used especially for women's dresses.

   {Irish poplin}, a fabric with silk warp and worsted weft,
      made in Ireland.

Source : WordNet®

poplin
     n : a ribbed fabric used in clothing and upholstery