ball-and-sock.et joint

ball-and-socket-joint的音标和读音：
DJ音标发音： [ˌbɔ:lənˈsɔkit]
KK音标发音： [ˌbɔlənˈsɑkɪt]

ball-and-socket-joint的词性：
n.（名词）

1. A synovial joint, such as the shoulder or hip joint, in which a spherical knob or knoblike part of one bone fits into a cavity or socket of another, so that some degree of rotary motion is possible in every direction.Also called enarthrosis
杵臼关节：一种滑膜关节，如肩关节或髋关节，一根骨头的球状圆头或球形部分嵌入另一骨头的窝内，以便在各个方向做一定程度的转动也作 enarthrosis

2. A joint, as in a mechanical device, that permits rotary movement in all directions through the movement of a ball in a socket.
球窝关节：一种接头，如在机械设备中，通过滚珠在承窝中的运动可做全方位的转动