exhaust

Use up (resources or materials).

“We exhausted our savings”

Wear out completely.

“This kind of work exhausts me”

Eliminate (a substance).

“combustion products are exhausted in the engine”

Deplete.

“exhaust one's savings”

Use up the whole supply of.

“We have exhausted the food supplies”

Gases ejected from an engine as waste products.

System consisting of the parts of an engine through which burned gases or steam are discharged.