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| ex·haust [ ig záwst ] |
verb (past and past participle ex·haust·ed, present participle ex·haust·ing, 3rd person present singular ex·hausts) |
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1. transitive verb tire somebody out: to make somebody feel very tired or weak
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2. transitive verb use something up: to use up all that is available of something
  Our supplies of fuel were now exhausted.
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3. transitive verb try out all possibilities: to try out or consider every one of a number of possibilities
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4. transitive verb say everything about something: to say or write everything about something, so that nothing is left to be discussed
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5. transitive verb drain something of its resources: to draw off or use up all the resources contained within something
overgrazing that has exhausted the pasture
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6. transitive and intransitive verb industry let out waste gases: to escape, or allow steam or waste gases to escape, at the end of an industrial process
Waste gases are exhausted through the flue.
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7. transitive verb physics remove gas to create vacuum: to remove all of the air or gas from a container in order to create a vacuum inside it
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noun (plural ex·hausts) |
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1. discharge of waste gases: the discharge of waste gases, vapor, and fumes created by and released at the end of a process, especially from the working of an internal-combustion engine
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2. escape system for waste gases: a pipe or other piece of apparatus through which waste gases escape
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| [Mid-16th century. < Latin exhaust-, past participle of exhaurire "draw out" < haurire "draw (water) out or up, drain"] |
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