'Pools' in the Bible

And the LORD spake unto Moses, Say unto Aaron, Take thy rod, and stretch out thine hand upon the waters of Egypt, upon their streams, upon their rivers, and upon their ponds, and upon all their pools of water, that they may become blood; and that there may be blood throughout all the land of Egypt, both in vessels of wood, and in vessels of stone.

Then the Lord said to Moses, “Say to Aaron, ‘Stretch out your hand with your staff over the rivers, over the streams and over the pools, and make frogs come up on the land of Egypt.’”