Definition of exception

An abnormal condition or error that occurs during the execution of a program. An exception requires the execution of software outside the normal flow of control.

Computer Science

Other definitions of exception

An instruction that tells Windows Firewall to open a port briefly, allow a program or service to pass a specific piece of information through, and then close the port. These instructions are called exceptions’ because normally the firewall blocks all unsolicited attempts to send information.’

Computer Science