denticule

n.(=dentil)齿状装饰

小齿状物；齿状突起

名词

1. The edge of the coin is decorated with a series of denticules.
硬币的边缘有一排排的小齿状物装饰。

2. The denticules on the saw blade ensure a smooth cut.
锯片上的齿状突起保证切割平滑。