pinion

1. V-T If you are pinioned, someone prevents you from moving or escaping, especially by holding or tying your arms. 控制两臂(以防移动或挣脱)

At nine the next morning Bentley was pinioned, hooded, and hanged. 第二天早上九点，班特力被绑住两臂、头被罩住，然后被绞死。

2. N a cogwheel that engages with a larger wheel or rack, which it drives or by which it is driven 小齿轮

3. N a bird's wing 鸟翼[POETIC]