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The most prominent projecting point of the occipital bone at the base of the skull.

[Greek īnion, occipital bone, from īs, īn-, sinew, fiber; see wei- in Indo-European roots.]


(Anatomy) anatomy the most prominent point at the back of the head, used as a point of measurement in craniometry
[C19: from Greek: back of the head]


(ˈɪn i ən)

the bulging part of the human occipital bone at the back of the skull.
[1805–15; < New Latin < Greek īníon nape of the neck]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.inion - the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance)
craniometric point - a landmark on the skull from which craniometric measurements can be taken
occipital bone - a saucer-shaped membrane bone that forms the back of the skull
References in classic literature ?
He wanted to, last Sunday, but I stopped him just as he was goin' out of the door with four heads strung on a string, for all the airth like a string of inions.
the location on the face, in between the eyes, at which the top bridge of the nose meets the face) and the inion (i.
These positions are determined by measuring the total distance between anatomical bony landmarks, such as the nasion and the inion (small indentation at the back of the head), as well as the circumference.
Ltd (China), Coloplast (Denmark), Inion Oy (Finland), Kerecis (Iceland), Lotus Surgical Pvt Ltd (India), Novus Scientific (Singapore), Occlutech (Sweden), S & G Biotech, Inc.
The dangers of pseudo fiscal inion in the emu", 2012, [http://triplecrisis.
sup][14] recommended using easily palpable skull landmarks (such as zygomatic root, inion, and mastoid process), not cranial sutures, to identify the locations of the transverse and sigmoid sinuses.
17] The most combative trade unions, especially in the ABC Paulista region near Sao Paulo city, demanded the reformulation of trade inion and labor legislation with new regulations, aiming at strengthening worker organizations and the democratization of relations between labor and capital.
The headset uses the international system 10-20 to collect data from the cranium's key nodes: nasion (near the frontal lobe), inion (occipital lobe), and the pre-auricular points.
Graftoss Limited, Graftys SAS, Inion Oy, Innovia LLC, Innovoss Inc.
Myocutaneous flap reflected, five burr holes were made in the following locations: (1) temporal squamous bone just superior to posterior root of zygomatic arch, (2) keyhole area behind frontal end of zygomatic arch anteriorly, (3) 3 cm above transverse sinus and 3 cm lateral to inion, (4) parietal parasaggital and (5) frontal parasagittal area.