上じょう円えん下か方ほう墳ふんじょうえんかほうふんMeanings1nounburial mound with a square base and a round topTechnical term in Japanese archaeology; refers to a specific type of ancient tomb (kofun) shape.上じょう円えん下か方ほう墳ふんは、古こ墳ふん時じ代だいの終おわりごろに現あらわれ