saltpan

noun

1. an undrained natural depression, as a crater or tectonic basin, in which the evaporation of water leaves a deposit of salt.

noun

1. a shallow basin, usually in a desert region, containing salt, gypsum, etc, that was deposited from an evaporated salt lake

1. A small, undrained, shallow depression in which water accumulates, evaporates, and deposits salt.
2. A small lake of brackish water occupying such a depression.