/ Dictionary / Index P parietal bone: Meaning and Definition of Find definitions for: pari'etal bone" Pronunciation: [key] — Anat. Anat. either of a pair of membrane bones forming, by their union at the sagittal suture, part of the sides and top of the skull. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parietal parietal cell 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