heat drying process natural heat drying http://www.langual.org/langual_thesaurus.asp?termid=J0141 Dried by natural heat, usually through exposure to the sun. Includes field-dried products such as grains and dry beans. These products are included also if they have been artificially dried to return them to normal dry state, e.g. grain that has been artificially dried after harvest. field drying sun drying