桡骨

桡骨	ráo gǔ	radius (anatomy) / bone of the forearm
桡	náo	(literary) to disturb / (literary) to weaken
桡	ráo	radius (anatomy) / bone of the forearm
骨	gū	used in 骨碌碌 / used in 骨碌
骨	gǔ	bone