'Aqueduct' in the Bible

And Jehovah said to Isaiah, Go out now to meet Ahaz, thou and thy son Shear-jashub, at the end of the aqueduct of the upper pool, on the highway of the fuller's field;

And the king of Assyria sent Rab-shakeh from Lachish to Jerusalem, to king Hezekiah, with a strong force. And he stood by the aqueduct of the upper pool, on the highway of the fuller's field.