subclassnoun/ˈsʌbklæs/

• 1

  A secondary class within a main class.

  • 1959, "Steam's Finest Hour" edited by David P. Morgan, Kalmbach Publishing Co., referring to the R-1 Mountain class loco. These 4-8-2's, of which B&M eventually purchased 18 in various subclasses, could almost haul the tonnage of a T and more than made up for the slight deficiency by raising the maximum speed limit from 45 to 70 miles per hour, thanks to 73-inch drivers.
  • Goffin is a prose text interspersed with short lists of typical terms exemplifying certain sub-classes of Indian English lexis.
• 2

  biologynatural-sciencestaxonomyA rank directly below class.

• 3

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

subclassverb/ˈsʌbklæs/

• 1

  computingengineeringmathematics(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

  computingengineeringmathematicsTo cause (an object) to act as an instance of a subclass (by creating the desired subclass and instantiating an object of this subclass).

  • Since Windows knows about these events, your application should be able to know about them as well. In order to accomplish this, subclass the window of a form or control, intercepting all of its events.