/ Dictionary / Index J job control language: Meaning and Definition of Find definitions for: job' control" lan"guage Pronunciation: [key] — Computers. Computers. a language used to construct statements that identify a particular job to be run and specify the job's requirements to the operating system under which it will run. Abbr.: JCL Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. job classification Job Corps Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language