Wet-Bulb Temperature 4 : The temperature at which water, by evaporating into air, can bring the air to saturation at the same temperature. Wetbulb temperature is measured by a wetbulb psychrometer
United States Department of Agriculture USDA, Glossary of Terms, Washington, DC, USA 2014. http://www.usda.gov/energy/matrix/FindTerms, (Oil - Amer) {780}