| Noun | 1. | malpractice - professional wrongdoing that results in injury or damage; "the widow sued his surgeon for malpractice"actus reus, wrongful conduct, misconduct, wrongdoing - activity that transgresses moral or civil law; "he denied any wrongdoing" |
| 2. | malpractice - a wrongful act that the actor had no right to do; improper professional conduct; "he charged them with electoral malpractices" actus reus, wrongful conduct, misconduct, wrongdoing - activity that transgresses moral or civil law; "he denied any wrongdoing" |