performance-enhancing
adjective uk/pəˈfɔː.məns.ɪnˌhɑːns.ɪŋ/ us/pɚˈfɔːr.məns.ɪnˌhæns.ɪŋ/
（体育竞赛中禁止使用的药物）可提高成绩的
used to describe drugs that are taken illegally by someone who plays a sport to make them better at that sport
Several athletes tested positive for illegal performance-enhancing drugs.