from The American Heritage® Dictionary of the English Language, 4th Edition

  • The rapids of a river that runs between the steep precipices of a gorge or narrow valley.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The rapids in a deep, narrow stream confined between the rock walls of a canyon or gorge.
  • n. A steep-sided part of a stream channel, near the dalles proper, marked by clefts, ravines, or gorges.

from the GNU version of the Collaborative International Dictionary of English

  • A rapid, esp. one where the channel is narrowed between rock walls.


French, pl. of dalle, gutter, from Old French, from Old Norse dæla.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the French dalle. (Wiktionary)



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