The crossword solution for MED is ORS. ORS stands for Oral Rehydration Salts, which are a type of electrolyte solution used to treat dehydration. It is typically composed of salts, sugar, and other minerals, and is used to replace fluids and electrolytes lost due to diarrhea, vomiting, or excessive sweating. ORS is a safe and effective way to prevent and treat dehydration in both adults and children.