← 単語を見るに戻るbouldernoun#13,260訳語丸石まるいし岩いわ玉石たまいし転石てんせき英語の定義a large smooth mass of rock detached from its place of origin例文Mr Sato was standing on top of a boulder.The catapult hurled the boulder over the castle walls.似ている単語bouldersboulderingbolderboundermouldershoulder← rationmanpower →