circinate
/ˈsɜːsɪneɪt/adjective
1- Botany rolled up with the tip in the centre, for example the young frond of a fern【植】拳卷的, 旋卷的（如蕨类植物的嫩叶）。
1.1
- Medicine circular in appearance【医】环状的, 环形的。
词源
early 19th cent.: from Latin circinatus, past participle of circinare 'make round', from circinus 'pair of compasses'.