classful

English

Etymology 1

From class +‎ -ful.

Adjective

classful (not comparable)

1. (computing, Internet) Of or relating to a network-addressing architecture that divides the address space into a number of classes.
   • 2002, Ravi Malhotra, IP Routing, page 101:

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

Antonyms

• classless

Etymology 2

From class +‎ -ful.

Noun

classful (plural classfuls or classesful)

1. An amount that fills a class.
   • 1922, C. C. Martindale, “At St. Mary’s Hall, September 1904—September 1907”, in Charles Dominic Plater S.J., London: Harding & More Ltd; The Ambrosden Press, […], page 87:

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

   • 2008, Eve Kosofsky Sedgwick, Epistemology of the Closet, page 68:

     Furthermore, the deadly elasticity of heterosexist presumption means that, like Wendy in Peter Pan, people find new walls springing up around them even as they drowse: every encounter with a new classful of students, to say nothing of a new boss, social worker, loan officer, landlord, doctor, erects new closets whose fraught and characteristic laws of optics and physics exact from at least gay people new surveys, new calculations, new draughts and requistitions of secrecy or disclosure.

   • 2013, John Updike, More Matter: Essays And Criticism:

     There is nothing sadder, to me, in the situation of young American writers, as the colleges turn them out by the creative-writing classfuls, than the lack of a significantly paying market for short stories.