The AI-powered English dictionary
plural coulees
A stream. examples
(geology) A lava flow.
(US) A deep gulch or ravine, frequently dry in summer. examples
(Mississippi Delta region) A reach of water in a bayou that is like a slough but deeper. quotations examples
We were in a coulee, which is like a slough but deeper and with slushier muds at the bottom.
1989, John McPhee, The Control of Nature, page 73