Improper or unethical conduct by the holder of a professional or official position. Professional misconduct or improper practice. The professional’s action or lack thereof must be below the minimum standards for the profession, and the patient or...

In law, malpractice is a type of negligence in which the misfeasance, malfeasance or nonfeasance of a professional, under a duty to act, fails to follow generally accepted professional standards, and that breach of duty is the proximate cause of injury...