1. An open, shallow, usually round container used especially for holding liquids. 2. The amount that such a vessel can hold. 3. A washbowl; a sink. 4. An artificially enclosed area of a river or harbor designed so that the water level remains unaffected by tidal changes. 5. A small enclosed or partly enclosed body of water. 6. the Amazon basin. 7. A broad tract of land in which the rock strata are tilted toward a common center. 8. A large, bowl-shaped depression in the surface of the land or ocean floor.
