cotyloid /ˈkɒtɪˌlɔɪd/ (also cotyloidal)

• 1. 

  ADJ shaped like a cup 杯状的

• 2. 

  ADJ of or relating to the acetabulum 髋臼的; 与髋臼有关的

• 3. 

  N a small bone forming part of the acetabular cavity in some mammals 髋臼骨