parietal bone

noun

Definition of parietal bone 

: either of a pair of bones of the roof of the skull between the frontal bones and the occipital bones

First Known Use of parietal bone

15th century, in the meaning defined above

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The first known use of parietal bone was in the 15th century

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parietal bone

noun

Medical Definition of parietal bone 

: either of a pair of membrane bones of the roof of the skull between the frontal and occipital bones that are large and quadrilateral in outline, meet in the sagittal suture, and form much of the top and sides of the cranium

More from Merriam-Webster on parietal bone

Britannica.com: Encyclopedia article about parietal bone

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