| 单词 | ball-and-socket joint |
| 释义 | ball-and-socket joint or ball joint noun 1. a coupling between two rods, tubes, etc, that consists of a spherical part fitting into a spherical socket, allowing free movement within a specific conical volume 2. Also called: multiaxial joint anatomy a bony joint, such as the hip joint, in which a rounded head fits into a rounded cavity, allowing a wide range of movement |
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