coulee

1. Western U.S. A deep gulch or ravine with sloping sides, often dry in summer.
2. Louisiana & Southern Mississippi
   a. A streambed, often dry according to the season.
   b. A small stream, bayou, or canal.
3. Upper Midwest A valley with hills on either side.
4. a. A stream of molten lava.
   b. A sheet of solidified lava.

Origin:

Origin: Canadian French coulée

Origin: , from French, flow

Origin: , from couler, to flow

Origin: , from Latin cōlāre, to filter

Origin: , from cōlum, sieve