The Collaborative International Dictionary of English v.0.48:

ninon \ni"non\ (n[=e]"n[o^]n; F. n[=e]*n[^o]N"), n. [F: nickname
   for proper name Anne; 1910-15]
   A sturdy cloth material of chiffon or voile, used for the
   manufacture of dresses and other women's garments, and for
   curtains, and drapery. The material may be constructed by
   either a plain or a novelty weaving technique. --RHUD
   [PJC]

WordNet (r) 3.0 (2006):

ninon
    n 1: a fine strong sheer silky fabric made of silk or rayon or
         nylon