Sentence:  He watched for a while, pacing the small, slippery cobbles, then made for the deep shade of a stone porch on the other side of the square, where a sheet with a red cross on it had been draped around a pillar. A two-wheeled field <WSD>dispensary</WSD> with no driver stood outside the building. 
Meaning of the word marked with <WSD> tags:  A room or vehicle specifically designed for the dispensing of drugs; a pharmacy.