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frontal bone

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noun Anatomy.
a broad membrane bone of the skull, forming the forehead and the upper portion of each orbit.
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Origin of frontal bone

First recorded in 1735–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use frontal bone in a sentence

British Dictionary definitions for frontal bone

frontal bone

noun
the bone forming the forehead and the upper parts of the orbits. It contains several air spaces
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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