fibroin
/ˈfaɪbroʊɪn/
noun
- A protein that is the main component of silk fibers, produced by spiders and silkworms.
- Silk is made from fibroin, which gives it strength and shine.
- The fibroin in spider webs is stronger than steel of the same thickness.
- Scientists are studying fibroin to create new biodegradable materials.