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English definition of “performance-enhancing”

performance-enhancing

adjective     /pəˈfɔː.məns.ɪnˌhɑːns.ɪŋ/ US  /pɚˈfɔːr.məns.ɪnˌhæns-/
used to describe drugs that are taken illegally by someone who plays a sport to make them better at that sport
(Definition of performance-enhancing adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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