malfunction
nounUK /ˌmælˈfʌŋkʃən/
US /ˌmælˈfʌŋkʃən/
A malfunction is when a machine stops working the way it should.
The airplane had to land because of a malfunction in one of its engines.
OTHER MEANINGS
2. To fail to work properly.
The heater malfunctioned during the night and the room got very cold.
3. A failure of a computer program or system to operate correctly.
A software malfunction caused the website to crash.
4. A failure of a body part or organ to function normally.
The doctor found a malfunction in the patient's heart valve.