Ground mixture is a combination of two or more materials that are mixed together to form a homogenous blend. The term 'ground mixture' is often used in cooking and baking, where it refers to a combination of ingredients that are blended together until they form a paste-like consistency. In the crossword puzzle, the solution for the term 'GROUND MIXTURE' was the word 'MASH'. This is an appropriate answer, as mashing is a common technique used to create a ground mixture.