petrotympanic fissure
[ pĕt′rō-tĭm-păn′ĭk ]
n.
A fissure between the tympanic and petrous portions of the temporal bone.
glaserian fissure
Words nearby petrotympanic fissure
petrosian,
petrositis,
petrosphenoid,
petrosquamosal,
petrostate,
petrotympanic fissure,
petrouchka,
petrous,
petrous ganglion,
petrovsk,
petrozavodsk