mousseline de soie
/ˌmuːsəliːn dɪ ˈswɑː/ /ˌmuːsliːn dɪ ˈswɑː/ /muːˌsliːn dɪ ˈswɑː/noun
A thin silk fabric with a texture like that of muslin.
Origin
Mid 19th century; earliest use found in Ladies' Gazette Fashion. From French mousseline de soie from mousseline + de + soie silk.