I. (ˈ) ̷ ̷+ noun
Etymology: mal- (I) + practice
1.
a. : a dereliction from professional duty whether intentional, criminal, or merely negligent by one rendering professional services that results in injury, loss, or damage to the recipient of those services or to those entitled to rely upon them or that affects the public interest adversely
b. : the failure of one rendering professional services to exercise that degree of skill and learning commonly applied under all the circumstances in the community by the average prudent reputable member of the profession with the result of injury, loss, or damage to the recipient of those services or to those entitled to rely upon them
2. : an injurious, negligent, or improper practice : malfeasance , wrongdoing
cheating and fixing and other malpractices — F.A.Wrensch
bewailing some current academic malpractice with the English language — D.J.Lloyd
II. intransitive verb
: to engage in or commit malpractice
the death of the boy … is laid at his door as a malpracticing doctor — Rose Feld