evaporite Syllabification: (e·vap·o·rite)Pronunciation: /iˈvapəˌrīt/Definition of evaporite noun Geology a natural salt or mineral deposit left after the evaporation of a body of water. Origin: 1920s: alteration of evaporate (see also -ite1)evaporite in other Oxford dictionaries Definition of evaporite in the British & World English dictionary