/ Dictionary / Index B biparietal: Meaning and Definition of Find definitions for: bi•pa•ri•e•tal Pronunciation: (bī"pu-rī'i-tl), [key] — adj. Craniom. of or pertaining to both parietal bones, esp. in their being determinants in measurements of the breadth of the skull. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. biparental biparous Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language