Definition of "epitestosterone" [epitestosterone]

• An inactive epimer of the steroid hormone testosterone (noun)

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• "The World Anti-Doping Agency lowered the abnormal T/E ratio to 4:1 in 2005; most people have a ratio of about 1:1 testosterone to epitestosterone in their urine."
• "Sports Illustrated reports that in 1999 USA Cycling asked Catlin for thetestosterone-epitestosterone ratios for a cyclist identified only by hisdrug-testing code numbers."
• "The letter back to USAC said that data from some early samples from the athlete could not be recovered, but that later samples from the athlete in question showed abnormally high testosterone-epitestosterone ratios on initial tests."