[ teer-ee-on, ter- ]
/ ˈtɪər iˌɒn, ˈtɛr- /

noun Craniometry.

the craniometric point at the side of the sphenoidal fontanelle.

Origin of pterion

1875–80; < New Latin, alteration of Greek pterón wing, on model of inion Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for pterion


[ tĕrē-ŏn′, tîr- ]


The junction of the greater wing of the sphenoid bone and the squamous temporal, the frontal, and the parietal bones.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.