Definition of "subclass" in English

noun

1. A secondary class within a main class.

2. (taxonomy) A rank directly below class.

3. (object-oriented programming) An object class derived from another class (its superclass) from which it inherits a base set of properties and methods.

verb

1. (transitive, computing) (in object-oriented programming) To create a subclass of (some class).

   • I subclassed the Button class to create a more specialised FancyButton class for my user interface.

2. (transitive, computing) To cause (an object) to act as an instance of a subclass (by creating the desired subclass and instantiating an object of this subclass).