volution
/vəˈljuːʃən/noun
1
- poetic/literary a rolling or revolving motion〈诗/文〉滚动; 旋转。
2
- a single turn of a spiral or coil螺环; 旋圈。
词源
late 15th cent.: from late Latin volutio(n-), from Latin volut- 'rolled', from the verb volvere.