sno-cat: a kind of snowmobile
wheeled vehicle: a vehicle that moves on wheels and usually has a container for transporting things or people
aspirin: the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer, Empirin, and St. Joseph) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets