Vocabulary What does 頭骨 (とうこつ, toukotsu) mean? 頭骨 (とうこつ, toukotsu) means skull. Quick factsReadingとうこつRomajitoukotsuPart of speechnoun 頭骨とうこつtoukotsuskull1noun skullKanji in this word頭head; leader骨bone