GNU Collaborative International Dictionary of English

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Found one definition

1.       
   Flume (f;ūm), 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.
   
   [1913 Webster]