epicondyle
noun [ C ] medical specialized uk/ˌep.ɪˈkɒn.dɪl/ us/ˌep.əˈkɑːn.daɪl/
上髁（骨上的隆起）
a part that sticks out at the end of a bone, often where muscles and tendons are attached
Inflammation of the epicondyle of the radius caused by overuse of the forearm is sometimes called tennis elbow. 因为前臂的过度使用而引起的桡骨上髁发炎有时被称为网球肘。