Definition, Meaning & Synonyms

porion

noun

/ˈpɔːr.i.ɒn/

Definition

The porion is an anatomical landmark on the human skull that corresponds to the upper margin of the external auditory meatus.

Examples

The porion is crucial for accurate cephalometric measurements in orthodontics.
In the study of skull morphology, researchers often identify the porion to ensure consistency in their data.
During cranial surgery, awareness of the porion’s location helps in preventing damage to surrounding structures.

Meaning

It refers specifically to the point where the external ear canal opens, and it is often used as a reference point in anthropometry and craniofacial measurements.