hiatus for greater petrosal nerve
Definition: the opening on the anterior aspect of the petrous part of the temporal bone that leads to the facial canal and gives passage to the greater petrosal nerve.
Synonym(s): hiatus canalis nervi petrosi majorisTA, fallopian hiatus, Ferrein foramen, hiatus canalis facialis, hiatus of facial canal
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

