coulee

名词noun

1. 1A stream, especially one in the western US or Canada, generally smaller than a bayou; it may (or may not) run dry in summer, may be sluggish, shallow, and wide (forming in effect a pond or slough), or may have formerly cut a deep gulch or ravine, but at present run dry.
2. 2Mississippi Delta regionA reach of water in a bayou that is like a slough but deeper.
3. 3(geology) A lava flow (whether molten or solidified).