ocean water; water containing salt
NAmE//ˈsɔltˌwɔt̮ər//, NAmE//ˈsɔltˌwɑt̮ər//
adjective [only before noun] saltwater fish compare freshwaterSee salt water in the Oxford Advanced Learner's DictionaryCheck pronunciation: salt water
Definition of salt water noun from the Oxford Advanced American Dictionary