rotula

轮

词形变化

rotulae rotulas 复数 rotulas rotulae 复数

释义与例句

n.
  1. 1.

    The patella; the kneecap.

    医学
  2. 2.

    One of the five radial pieces in the dentary apparatus of the sea urchin.

    生物 动物学

词源

Learned borrowing from Latin rotula. Doublet of role and roll.

来源：wiktionary