臼玉 うすだま noun (common) (futsuumeishi) 臼玉うすだま Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) archeology discoidal bead (Kofun period);pierced jade beads 漢字 kanji used 臼 mortar 6画 玉 jewel, ball 5画
臼玉うすだま Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) archeology discoidal bead (Kofun period);pierced jade beads