A chemical reaction in which hydrogen is added to, or oxygen is removed from, a compound. Opposite of oxidation.

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  • Every since the implementation of the "Prisoners for Profit" program, Memphis has seen a significant reduction in recidivism from last year.

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  • Billy got a below passing grade on his advanced chemistry test because he didn't fully understand how reduction chemistry worked.

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  • There has been a huge reduction in the amount of animals at the zoo and everyone thinks it is due to the bad weather in the town.

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