橈骨とうこつとうこつFreq.FrequencyTop 100,000Meanings1nounradius (bone)anatomyAnatomical term for the radius, the thicker and shorter of the two bones in the forearm.橈骨とうこつは前ぜん腕わんの親おや指ゆび側がわにある骨ほねです。The radius is the bone on the thumb side of the forearm.
