Definition of performance-enhancing in US English:

performance-enhancing

adjective

  • Denoting or relating to a substance, typically one banned for use in competitive events, that is taken by an athlete to improve their performance.

    ‘she was banned from competition for two years after admitting she had used performance-enhancing drugs’
    • ‘It is widely suspected that many of today's school rugby players take the legal performance-enhancing drug creatine.’
    • ‘The ethical issue of using performance-enhancing substances that are not banned has not been resolved.’
    • ‘The new book brings together the latest and most comprehensive scientific information about performance-enhancing substances.’
    • ‘Every now and then a new performance-enhancing nutrient no one's ever heard of starts showing up on store shelves.’
    • ‘Our experts have determined the stimulant is performance-enhancing.’
    • ‘In a move sure to be controversial, the test subjects would be given safe doses of performance-enhancing drugs for a limited time.’
    • ‘The World Anti-Doping Agency lists over 400 performance-enhancing drugs, from amphetamines to cannabis to steroids.’
    • ‘Some coaches and parents look the other way and even actively encourage the use of performance-enhancing substances in pursuit of scholarships.’
    • ‘Her ex-husband has reportedly told investigators she did use performance-enhancing drugs.’
    • ‘Despite their name, corticosteroids are not the same as performance-enhancing steroids used by athletes.’
    • ‘Will athletic regulators have to look out for a new class of performance-enhancing substances?’
    • ‘Peter says his dad could not understand why an athlete would take performance-enhancing drugs or accept money to compete.’
    • ‘It has recently become popular as an ingredient in weight-loss and performance-enhancing supplements in America.’
    • ‘There is little need for illicit performance-enhancing substances in the average high school athlete's competitive endeavors.’
    • ‘When people think of performance-enhancing drugs, they usually think of steroids.’