収繭[shuuken] cocoon crop
二つ繭[futatsumayu] double cocoon
繭を掛ける[mayuwokakeru] to spin a cocoon
繭価[mayuka] price of a cocoon
繭玉[mayudama] New Year's decoration with cocoon-shaped cakes

繭紬[kenchuu] pongee (unbleached silk)
繭糸[kinuito] silk thread
春繭[harumayu] spring cocoon crop
山繭蛾[yamamayuga] Japanese oak silkmoth (Antheraea yamamai)