前ぜん方ぽう後こう円えん墳ふん

noun

keyhole-shaped ancient Japanese tumulus

Technical term in archaeology for a distinctively shaped burial mound from the Kofun period, with a square front and round back.

• 前ぜん方ぽう後こう円えん墳ふんは古こ墳ふん時じ代だいを代だい表ひょうする墳ふん墓ぼの形かたちです。

  The keyhole-shaped tumulus is a representative tomb form of the Kofun period.

• この地ち域いきには多おおくの前ぜん方ぽう後こう円えん墳ふんが残のこっている。

  Many keyhole-shaped tumuli remain in this region.