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

n. gases ejected from an engine as waste products

v. eliminate (a substance); "combustion products are exhausted in the engine"; "the plant releases a gas"

v. of gases

v. use up (resources or materials); "this car consumes a lot of gas"; "We exhausted our savings"; "They run through 20 bottles of wine a week"

v. deplete; "exhaust one's savings"; "We quickly played out our strength"

v. deplete; "exhaust one's savings"; "We quickly played out our strength"