an artificial stream or channel of water for moving solid matter: a lumbering sluice.
7.
Also called sluice box. Mining. a long, sloping trough or the like, with grooves on the bottom, into which water is directed to separate gold from gravel or sand.
to flow or pour through or as if through a sluice.
Origin: 1300–50; Middle English scluse (noun) < Old French escluse < Late Latin exclūsa, a water barrier, noun use of feminine of Latin exclūsus, past participle of exclūdere to exclude
c.1340, aphetic of O.Fr. escluse "sluice, floodgate," from L.L. exclusa "barrier to shut out water" (in aqua exclusa "water shut out"), from fem. sing. of L. exclusus, pp. of excludere "shut out" (see exclude).