flume /fluːm/noun 2verb 1forms 3 noun2 •An open channel or trough used to direct or divert liquids, especially to carry materials (logs, mined material, etc) or people (as a water slide), especially (but not always) one where the walls are raised above the surrounding terrain rather than recessed like a ditch.[...] the flumes are generally not dark rides and they run much faster. Two notable exceptions are the Timber Mountain[…] — 2001 •A ravine or gorge, usually one with water running through. verb1 •To transport (logs of wood) by floating them along a water-filled channel or trough. formsflumed · fluming · flumes