hotbox
/ˈhɑtˌbɑks/
noun
- An overheated bearing on a railroad car or other machinery, often causing a fire risk.
- A hotbox can cause a derailment if not caught in time.
- The train had to stop because of a hotbox on one of the wheels.
- Railroad workers check for hotboxes before every long trip.
- A small, enclosed space that becomes very hot, such as a poorly ventilated room or vehicle.
- The attic was a hotbox in the summer, with no air conditioning.
- They called the tiny office a hotbox because it had no windows.
- The car turned into a hotbox after sitting in the sun all day.