The term 'SNOW BOOTS' can be broken down into two crossword solutions: PACS (4 letters). PACS stands for Picture Archiving and Communication System, which is a medical imaging technology used for storing, retrieving, presenting, and sharing images produced by various medical hardware modalities, such as X-ray, CT scan, MRI, and ultrasound machines. PACS is used to store, manage, and distribute digital images and other medical data, such as reports and patient information.