You searched for: “allochthonous streams”
allochthonous stream (s) (noun), allochthonous streams (pl)
A stream that flows in a channel it did not itself form: Mr. Smart showed his class a photo of a river, or allochthonous stream, rushing along in a man-made or artificial duct.
This entry is located in the following units: allo-, all- (page 3) chthon- + (page 1)