Word Study
spillway
CIDE DICTIONARY
spillway, n.
A sluiceway or passage for superfluous water in a reservoir, to prevent too great pressure on the dam. [1913 Webster]
THESAURUS
spillway
aqueduct, arroyo, bed, canal, creek bed, culvert, donga, dry bed, flume, gulch, gully, gullyhole, headrace, irrigation ditch, nullah, race, river bed, riverway, runnel, sluice, spillbox, stream bed, streamway, swash, swash channel, tailrace, wadi, water carrier, water channel, water furrow, water gap, water gate, watercourse, waterway, waterworksFor further exploring for "spillway" in Webster Dictionary Online