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frontal bone

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frontal bone

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


Origin:
1735–45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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frontal bone  
n.  A cranial bone consisting of a vertical portion corresponding to the forehead and a horizontal portion that forms the roofs of the orbital and nasal cavities.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: frontal bone
Function: noun
: a bone that forms the forehead and roofs over most of the orbits and nasal cavity and that at birth consists of two halvesseparated by a suture; also : either of the two halves especially in a vertebrate in which they do not unite to form a single bone
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

frontal bone n.
A cranial bone consisting of a vertical portion corresponding to the forehead and a horizontal portion that forms the roofs of the orbital and nasal cavities.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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