短たん甲こうたんこうMeanings1nounshort metal body armorhistorical termHistorical term for a type of short metal body armor used from the early Kofun period to the early Heian period.古こ墳ふん時じ代だいの遺い跡せきから短たん甲こうが出しゅつ土どした。Short metal body armor was excavated from a Kofun-period site.