/ Dictionary / Index P parietal cell: Meaning and Definition of Find definitions for: pari'etal cell" Pronunciation: [key] — Anat. Anat. any of the cells in the mucous membranes of the stomach that secrete hydrochloric acid. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parietal bone parietal eye Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language