土ど版ばんどばんMeanings1noundecorated clay tablet (Jōmon period)archeologyArchaeological term for a clay tablet with decorative patterns, characteristic of the Jōmon period.この土ど版ばんは縄じょう文もん時じ代だいの遺い跡せきから出しゅつ土どした。This clay tablet was excavated from a Jōmon period site.