petrosquamosal pet·ro·squa·mo·sal (pět’rō-skwə-mō’səl) or pet·ro·squa·mous (-skwā’məs, -skwä’-)
Of or relating to the petrous and the squamous portions of the temporal bone of the skull.


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    petrotympanic fissure pet·ro·tym·pan·ic fissure (pět’rō-tĭm-pān’ĭk) n. A fissure between the tympanic and petrous portions of the temporal bone. Also called glaserian fissure.

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