Sentence:  GARDEN <WSD>FLOODER</WSD> is a lawn and garden irrigating device that allows flooding of large areas without excessive runoff, erosion or evaporation. Made of polyethylene, the <WSD>flooder</WSD> is designed so that water flow is slowed without greatly reducing the volume. 
Meaning of the word marked with <WSD> tags:  A channel or device for carrying and controlling water used in flood irrigation.