柯林斯詞典trochlea /?tr?kl??/ 1. N any bony or cartilaginous part with a grooved surface over which a bone, tendon, etc, may slide or articulate 滑車 返回 trochlea劍橋詞典a long , narrow , hollow space in a surface in the body that a bone or tendon can move against, especially the lower end of the humerus (= the long bone of the upper arm ) （尤指肱骨的）滑車 the trochlea of the humerus 肱骨滑車 返回 trochlea