(sent). (1) The celebrated pool, or tank, at Jerusalem, on the south side, near the opening of the Tyrophean valley into the Kidron valley. Originally a part of the water supply of the city (Neh. 3:15; Isa. 8:6; John 9:7-11). (2) An Unlocated tower whose fall killed eighteen men (Luke 13:4). Siloam still retains its ancient name under the form of the Arabic Silwan. It is partly hewn from rock and partly built with masonry. A flight of steps leads down to it. It is no longer a natural spring of fresh, limpid water, but is fed from the Fountain of the Virgin through a rock tunnel over 1700 feet in length. The waters are brackish and colored, and the walls and steps in ruins.