exhaust

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exhaust

1. gases ejected from an engine as waste products
2. 
a. the expulsion of expanded gas or steam from an engine
b. (as modifier): exhaust stroke
3. 
a. the parts of an engine through which the exhausted gases or steam pass
b. (as modifier): exhaust valve

exhaust

[ig′zȯst]
(mechanical engineering)
The working substance discharged from an engine cylinder or turbine after performing work on the moving parts of the machine.
The phase of the engine cycle concerned with this discharge.
A duct for the escape of gases, fumes, and odors from an enclosure, sometimes equipped with an arrangement of fans.
(science and technology)
References in periodicals archive ?
She firmly believes that just as past attitudes were changed as a result of Darwin's publications, present attitudes can also be changed as people all over the world come to grips with the reality of our planet's exhaustibility.
The Hegelian Exhaustibility of Art and Dante's End of Philosophy: Existential Thought and Polymetric Music in Di Cicco's Poetry.
Due to the need for exclusivity and exhaustibility of the dimension levels, care was taken to span the entire range of possible variations in each dimension.