camanchaca|kæmənˈtʃɑːkə| [Amer.Sp.] A heavy mist on the Peruvian coast. 1907C. R. Enock Andes & Amazon i. 5 The heavy mist upon the coast, known as Camanchaca.1922Daily Mail 17 Nov. 8 In the Northern rainless zone, the camanchacas, or heavy, overhanging mists, became much denser.