floodgate, head gate, sluicegate, sluice valve, water gate

headrace, forebay, millrace, manway, tailrace, switchyard, sluiceway, flume, underdrain, flue pipe, superheater, weir, pipework, clarifiers, floor joist, dam, cofferdam, soakaway, clarifier, aqueduct, venturi, sump pump, bascule, condenser, duct, upflow, culvert, sump, regenerator, inferior vena cava, trestle bridge, inlet, cistern, chimney, spillway, spermatic cord, watercourse, kilovolts, outfall, crossbeam, ileum, arrester, shaft, transite, activated sludge, reservior, creek, intake valve, transformer, conveyor, slurry, piping, firebox, coiler, stopcock, crossflow, tributary, compressor, falsework, waterpower, swarf, moulins, gabion, piston rod, molecular sieve, inlet manifold, prestressed, exothermic reaction, revetment, reservoir, precipitator, underflow, platens, ureters, corium, raffinate, impeller, downpipe, subgrade, eductor, aqueous humor, macerator, cathodic, downspout, firebrick, ventilation shaft, chimney stack, overpressure, influent, turbogenerator, formwork, anode, leachate, fishway, aromatic hydrocarbon, winze, oxbow, gunite, hose, trommel, lamella, ascending colon, pipe, pipes, conduit, pipeline, silo, caisson, casing, dowel, flue, girder, joist, joists, piles, riser, rod, sewer

sluice

channel, regulator