noun
engine compartment (of a vehicle)
Specifically the enclosed space in a car, truck, or other land vehicle that houses the engine.
ボンネットを開けてエンジンルームを点検した。
I opened the hood and inspected the engine compartment.
noun
The machinery space on a vessel where the main propulsion engines and auxiliary equipment are located.
船のエンジンルームはとても暑い。
The ship's engine room is very hot.