an extensive level tract coated with salt deposits left by evaporation of rising ground water or a temporary body of surface water.
Compare alkali flat.
Origin of salt flat
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for salt flat
a flat expanse of salt left by the total evaporation of a body of water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012