porion

por·i·on

, pl.

po·ri·a

(pōr'ē-on, -ē-ă),
The central point on the upper margin of the external auditory meatus; as a cephalometric landmark, it is located in the middle of the metal rods of the cephalometer.
[G. poros, a passage]

porion

[por′ē·on]
Etymology: Gk. poros, passage
the most lateral point on the roof of the bony external acoustic meatus, vertically over the middle of the meatus. Also called point Po.

por·i·on

, pl. poria (pōr'ē-on, -ă)
Central point on upper margin of external auditory meatus.
[G. poros, a passage]

porion (pō´rēon),

n the superior surface of the external auditory meatus. In craniometry, porion is identified as the margin of the bony canal on the skull. In cephalometrics it may be identified from the earpost of the cephalostat (machine porion) or from bony landmarks on the film (anatomic porion).
References in periodicals archive ?
Alex Porion, global sourcing senior manager for Boston Scientific Corporation, offered a similar tip, recommending that companies look beyond the current contract to attract future business.
b) Lateral cephalometric radiographs skeletal reference points: Nasion (N), sella (S), orbitale (Or), porion (Po), condylon(Co), anterior nasal spine (ANS), posterior nasal spine (PNS), point (A), point (B), gnathion (Gn), menton (Me), and gonion (Go).
Porion was found to be Diagnostically Unacceptable in 7.
Two points, Porion and Orbitale, were marked on the digital images.
Building porion including water supply and sanitation.
Callaghan (Colombia), Phillipe Floquet (Francia), Stephane Attal (Francia), Thierry Porion (Francia), Greg Nielsen (Colombia), Hugo Rocha (Mexico), Fabio Vitale (Italia), Profesor Henri Descimon (Francia), Dr.
In its statement, the city notes that Trinity East only submitted three applications for zoning permits, which applied to only a porion of the land it leased.
En este estudio, el angulo FH/N/Pg tuvo el menor error interobservador, es decir, alta reproducibilidad en ambos metodos, a diferencia de lo reportado por Sayinsu y colaboradores, (11) donde todos los parametros con correlaciones mas bajas, fueron medidas relacionadas con el plano de Frankfort, el cual pasa a traves de Porion y Orbitario.
Height measurement was performed with one of the researchers standing at the left side of the participants taking their chins with his/her left hand and holding their heads on Frankfurt horizontal plane, a standard craniometric reference plan passing through the right and left porion and the left orbitale.
El plano FH se determino utilizando el porion anatomico y orbital como puntos de referencia, y el plano oclusal fue definido de la siguiente manera:
the coronal plane, passing through the left and right Porion perpendicular to the chosen axial plane; and