1. 漩涡状的：circadian 生理节奏的 | circinate 漩涡状的 | circleencircleround 圜
2. 环状的：cionotomy 悬雍垂部分切除术 | circinate 环状的 | circular bandage 圆形绷带
3. 环形的：circatidalrhythm 潮汐周期节律 | circinate 环形的 | circinateretinopathy 环形视网膜病
adj
1. shaped like a ring
Synonym: annular annulate annulated ringed ring-shaped doughnut-shaped