Found 2 items, similar to wasteweir.
English → English (WordNet) Definition: wasteweir wasteweir n : a channel that carries excess water over or around a dam or other obstruction [syn: spillway, spill]
English → English (gcide) Definition: Wasteweir Wasteweir \Waste"weir`\, n. An overfall, or weir, for the escape, or overflow, of superfluous water from a canal, reservoir, pond, or the like. [1913 Webster]