A type of silk fabric with an uneven, slubby texture created from the cocoons of double silkworms, giving it a distinctive bumpy appearance.
From French dupion, from Italian duppione, possibly derived from Latin duo (two), referring to the double cocoon. The term entered English in the 19th century as the silk trade expanded.
Dupion silk is accidentally created when two silkworms spin their cocoons together—what looks like a manufacturing flaw is actually prized for its unique texture and authenticity.
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