両凸 りょうとつ noun (common) (futsuumeishi) nouns which may take the genitive case particle 'no' 両凸りょうとつ Noun Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi)nouns which may take the genitive case particle 'no' biconvex 漢字 kanji used 両 both, old Japanese coin 6画 凸 convex, beetle brow 5画
両凸りょうとつ Noun Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi)nouns which may take the genitive case particle 'no' biconvex