douppioni

noun
doup·​pi·​o·​ni
variants: or doupioni or less commonly dupioni \ ˌdüpēˈōnē \ or doupion or dupion \ ˈdüpēˌōn \
plural -s

Definition of douppioni

1 : a usually large and uneven double silk thread reeled usually from two united cocoons and used in various fabrics (as shantung and pongee)
2 : a fabric of douppioni yarn

History and Etymology for douppioni

French & Italian; French doupion, from Italian doppione (plural doppioni) double cocoon made by two silkworms, augmentative of doppio double, from Latin duplus

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