The crossword solution for the term 'evaporating, with 'UP'' is 'DRYING'. Evaporation is the process of a liquid turning into a gas, and when this happens with water it is known as 'drying UP'. This is because the water molecules are heated and move faster, eventually becoming a gas and leaving the surface of the liquid. Drying is a common process used in many industries, such as food production, where it is used to remove moisture from food products.