Simple Definition of malfunction
: to fail to function or work properly
Full Definition of malfunction
: to function imperfectly or badly : fail to operate normally
Examples of malfunction in a sentence
A software problem is causing the system to malfunction.
Did You Know?
A malfunctioning switch might keep us from turning on a light. A malfunctioning heart valve might require replacement with an artificial valve, and if your immune system malfunctions it may start to attack healthy cells. And a malfunction in a voting machine could result in hundreds of votes being miscounted.
First Known Use of malfunction
Medical Definition of malfunction
: to function imperfectly or badly : fail to operate in the normal or usual manner <malfunctioning kidneys>
Seen and Heard
What made you want to look up malfunction? Please tell us where you read or heard it (including the quote, if possible).