exertion
- n use of physical or mental energy; hard work
they managed only with great exertion
exfiltration operation
- n a clandestine rescue operation to bring a defector or refugee or an operative and family out of danger
exfoliation
- n the peeling off in flakes or scales of bark or dead skin
exfoliation is increased by sunburn - n a thin flake of dead epidermis shed from the surface of the skin
exhalation
- n exhaled breath
- n the act of expelling air from the lungs
exhaust
- n gases ejected from an engine as waste products
- n system consisting of the parts of an engine through which burned gases or steam are discharged
- v wear out completely
This kind of work exhausts me - v use up (resources or materials)
We exhausted our savings - v deplete
exhaust one's savings - v use up the whole supply of
We have exhausted the food supplies - v eliminate (a substance)
combustion products are exhausted in the engine
exhaust hood
- n metal covering leading to a vent that exhausts smoke or fumes