from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The most prominent projecting point of the occipital bone at the base of the skull.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small protuberance on the external surface of the back of the skull near the neck; the external occipital protuberance.
from the GNU version of the Collaborative International Dictionary of English
- n. The external occipital protuberance of the skull.
from The Century Dictionary and Cyclopedia
- n. An onion. This pronunciation is shown, without the changed spelling, in the second extract.
- n. In anatomy, a ridge of the occiput to which muscles of the nape are attached; now, specifically, the external occipital protuberance.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance)
There are several no cost benefits provided by my credit inion too.
Whereas the Church was earlier persecuted by Communists, French Revolutionaries; the Kulturkampf and any number of other godless initiatives, this time time Church is being attacked by people inside it, in my op-inion, always of the LCWR-type.
Cedric Ballantine was killed KGB style, with a .22 bullet into the back of his head just below the inion.
The motor area on both sides of the brain was sometimes implicated; thus in a child shot at Kimberley the bullet entered in the right frontal region, and emerged to the left of the line connecting bregma and inion
The part of the squama above the inion and highest lines is named the planum occipitale, and is covered by the Occipitalis muscle; the part below is termed the planum nuchale, and is divided by the median nuchal line which runs downward and forward from the inion to the foramen magnum; this ridge gives attachment to the ligamentum nuchæ.
Near the middle of the occipital squama is the external occipital protuberance or inion, and extending lateralward from it on either side is the superior nuchal line, and above this the faintly marked highest nuchal line.
The position of the transverse sinus is obtained by taking two lines: the first from the inion to a point 2.5 cm. behind the auricular point; the second from the anterior end of the first to the tip of the mastoid process.
To define the central sulcus (fissure of Rolando) two points are taken; one is situated 1.25 cm. behind the center of the line joining the nasion and inion; the second is at the intersection of the line of the posterior ramus of the lateral cerebral fissure with a line through the preauricular point at right angles to Reids base line.
Another method of defining the Sylvian point is to divide the distance between the nasion and inion into four equal parts; from the junction of the third and fourth parts (reckoning from the front) draw a line to the frontozygomatic suture; from the junction of the first and second parts a line to the auricular point.
The point of meeting of the lambdoidal and sagittal sutures; it is in the middle line about 6.5 cm. above the inion.
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