cluss, clushSc. [ad. F. écluse sluice, q.v.; cf. clow n.1] A sluice. 1791T. Newte Tour Eng. & Scot. 176 The sluice of a mill, in the Low-lands of Scotland, is called the cluss. This is evidently taken from the French ecluse.1808Jamieson s.v.Clouse: Clush, a sluice.