/ Dictionary / Index P pipeliner: Meaning and Definition of Find definitions for: pipe•lin•er Pronunciation: (pīp'lī"nur), [key] — n. a person or company that specializes in laying pipelines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pipeline pipelining Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language