/ Dictionary / Index P production line: Meaning and Definition of Find definitions for: produc'tion line" Pronunciation: [key] an arrangement of machines or sequence of operations involved with a single manufacturing operation or production process. Cf. (def. 29). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. production control production number Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language