flume (n.)youdaoicibaDictYouDict[flume 词源字典]
late 12c., "stream," from Old French flum "running water, stream, river; dysentery," from Latin flumen "flood, stream, running water," from fluere "to flow" (see fluent). In U.S., used especially of artificial streams channeled for some industrial purpose.[flume etymology, flume origin, 英语词源]