Classful

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An amount that fills a class.

    "They were real aids to memory, and amused whole classesful at a time."

Adjective
  1. 1
    Of or relating to a network-addressing architecture that divides the address space into a number of classes. Internet, not-comparable

    "Classful routing protocols do not carry subnet masks; classless routing protocols do."

  2. 2
    Of or relating to the presence and employment of classes in a programming language. not-comparable

Example

More examples

"Classful routing protocols do not carry subnet masks; classless routing protocols do."

Etymology

From class + -ful.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.