Backwater

·noun Water thrown back by the turning of a waterwheel, or by the paddle wheels of a steamer.

II. Backwater ·noun An accumulation of water overflowing the low lands, caused by an Obstruction.

III. Backwater ·noun Water turned back in its course by an obstruction, an opposing current , or the flow of the tide, as in a sewer or river channel, or across a river bar.