防ぼう舷げん材ざいMeanings1nounfender (boat); bumper (dock)Nautical term for a cushioning device used to protect a boat's hull from contact with a dock, pier, or another vessel.船ふねが岸がん壁ぺきに接せつ舷げんするとき、防ぼう舷げん材ざいを下おろして船せん体たいを守まもる。When the ship comes alongside the quay, they lower fenders to protect the hull.