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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Anatomy) the bone forming the forehead and the upper parts of the orbits. It contains several air spaces
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
the broad front part of the skull, forming the forehead.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A bone of the skull, consisting of a part that corresponds to the forehead and a part that forms the roof of the eye sockets and cavities of the nose.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The forehead bone.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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|Noun||1.||frontal bone - the large cranial bone forming the front part of the cranium: includes the upper part of the orbits|
glabella, mesophyron - a smooth prominence of the frontal bone between and above the eyebrows; the most forward projecting point of the forehead in the midline at the level of the supraorbital ridges
metopion - the craniometric point midway between the frontal eminences of the skull
ophryon - the craniometric point in the midline of the forehead immediately above the orbits
membrane bone - any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull
frontal eminence - either prominence of the frontal bone above each orbit
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.