n.

1. 【动】螺层
2. 【植】轮生体
3. 【解】（指纹的）涡纹
4. （纺锤的）整速轮
5. 螺旋状的东西

n.

1. Zoology  each of the convolutions in the shell of a gastropod or ammonoid mollusc.
2. Botany  a set of leaves, flowers, or branches springing from the stem at the same level and encircling it.
   ▸(in a flower) each of the sets of organs, especially the petals and sepals, arranged concentrically round the receptacle.
3. a complete circle in a fingerprint.
4. chiefly historical a small wheel or pulley in a spinning wheel, spinning machine, or spindle.

v.