obex
Pronunciation: ō′beks
Definition: The point on the midline of the posterior aspect of the medulla oblongata that marks the caudal angle of the rhomboid fossa or fourth ventricle. It corresponds to a small, transverse medullary fold overhanging the calamus scriptorius.
[L. barrier]
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

