Channels (Hydraulic engineering) (Topical Term)

Gloss. geol. (channel [streams] (e) An artificial waterway, such as an open conduit, an irrigation ditch or canal, or a floodway; channel [coast] (b) The deeper part of a moving body of water (as a bay, estuary, or strait) through which the main current flows or which affords the best passage through an area otherwise too shallow for navigation; it is often deepened by dredging. Also, a navigable waterway between islands or other obstructions, as on a lake)

Thesaurus for graphic materials I: subject terms, via WWW, July 7, 2003 (Channels. UF River channels, Sounds (Geomorphology), Straits. BT Bodies of water)