Flume (?), n. [Cf. OE. flum river, OF, flum, fr. L. flumen, fr. fluere to flow. 84. See Fluent.]
A stream; especially, a passage channel, or conduit for the water that drives a mill wheel; or an artifical channel of water for hydraulic or placer mining; also, a chute for conveying logs or lumber down a declivity.
© Webster 1913.