If you accuse someone of malpractice, you are accusing them of breaking the law or the rules of their profession in order to gain some advantage for themselves.
例句
There were only one or two serious allegations of malpractice.只有一两起有关营私舞弊的严重指控。...alleged financial malpractices.涉嫌财务舞弊
英汉词典释义
n.
<律>玩忽职守, 渎职, 不法行为
She sued her doctor for malpractice.她控告她的医生失职。
英英词典释义
Noun
1. professional wrongdoing that results in injury or damage;
"the widow sued his surgeon for malpractice"
2. a wrongful act that the actor had no right to do; improper professional conduct;