floodgate   (Sound)

The floodgate has 2 Senses.

• floodgate
• something that restrains a flood or outpouring; "suspension of surveillance opened the floodgates to illegal immigrants"
• 洪水か流出を抑制するもの

• head gate, sluice valve, water gate, penstock, sluicegate, floodgate
• 水門, 水圧管, 取り入れ口
• regulator consisting of a valve or gate that controls the rate of water flow through a sluice
• 水門を通して水流の率を制御する弁かゲートから成っている調整装置