from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of a pair of compound bones forming the sides and base of the skull.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Either of two compound bones that collectively make up the sides and base of the skull.
from the GNU version of the Collaborative International Dictionary of English
- adj. a very complex bone situated in the side of the skull of most mammals and containing the organ of hearing. It consists of an expanded squamosal portion above the ear, corresponding to the squamosal and zygoma of the lower vertebrates, and a thickened basal petrosal and mastoid portion, corresponding to the periotic and tympanic bones of the lower vertebrates.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a thick bone forming the side of the human cranium and encasing the inner ear
Sorry, no etymologies found.