periscope n. 潜望鏡.【動詞+】lower a periscope潜望鏡を下ろす.【形容詞 名詞+】+もっと...a submarine's periscope潜水艦の潜望鏡.【雑】Up periscope!潜望鏡上げ. driver's periscope: 操縦手用潜望鏡look into the periscope: 潜望鏡{せんぼうきょう}をのぞくlower a periscope: 潜望鏡{せんぼうきょう}を下ろす