Silk

1. A fine, lustrous fiber composed mainly of fibroin and produced by certain insect larvae to form cocoons, especially the strong, elastic, fibrous secretion of silkworms used to make thread and fabric. Silk is a major export item for China.
2. Thread or fabric made from this fiber. She sewed the silk dress using silk tread.
3. A garment made from this fabric. My wife loves wearing silk.