Liquidize is a process of breaking down a solid material into a liquid form. It is often used in food preparation, such as when making soup or sauces. The term 'liquidize' can also be used to describe the process of turning a gas into a liquid, such as when liquefying natural gas. The crossword solution for the term 'liquidize' is 'PUREE, ' which is a process of blending food until it is smooth and creamy. Pureeing is often used to make soups, sauces, and baby food.