1. (noun) equipment in a motor vehicle that cools the engine

• engine cooling system

2. (noun) a mechanism for keeping something cool

• cooling

1. (noun) a mechanism for keeping something cool

• air conditioner
• air conditioning
• coolant system
• cooling tower
• evaporative cooler
• refrigeration system

1. (noun) equipment in a motor vehicle that cools the engine

• equipment

2. (noun) a mechanism for keeping something cool

• mechanism

1. (noun) a mechanism for keeping something cool

• chill
• cool
• cool down