锁骨

锁骨	suǒ gǔ	collarbone / clavicle
锁	suǒ	to lock; to lock up / a lock (CL:把)
锁	suǒ	old variant of 锁
骨	gū	used in 骨碌碌 / used in 骨碌 / used in 骨朵
骨	gǔ	bone