Definition: A function in C++ and C# can be marked as virtual. This means that it can be overridden in a derived class so that it has different behaviour. This is called Polymorphism because the overridden function will behave differently from the original function in the base class.
Glossary:
A B C D E F G H I J K L M N O P Q R S T U V W X Y ZExamples:
Overriding is how inheritance is done.
