Rivinus' incisure


Also found in: Dictionary, Thesaurus.
Related to Rivinus' incisure: Shrapnell's membrane

incisure

 [in-si´zher]
Rivinus' incisure (tympanic incisure) tympanic notch.

Rivinus' incisure

a defect in the upper tympanic part of the temporal bone, filled by the upper portion of the tympanic membrane.