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performance-enhancing

[per-fawr-muh ns en-han-sing, ‐en-hahn-sing]
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adjective
  1. noting or relating to a drug or other substance used to improve one's performance in a sport or other activity requiring strength, stamina, etc.: The use of performance-enhancing steroids by athletes is banned.
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Origin of performance-enhancing

First recorded in 1975–1980
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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