/ Dictionary / Index P pumpernickel: Meaning and Definition of Find definitions for: pum•per•nick•el Pronunciation: (pum'pur-nik"ul), [key] — n. a coarse, dark, slightly sour bread made of unbolted rye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pumpernickel (Thesaurus) pumper pump gun Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language