- Of or regarding the petrous and mastoid parts of the temporal bone; periotic.
- Of or regarding the petrous and mastoid elements of the temporal bone tissue, periotic.
- Of or pertaining to the petrous and mastoid elements of the temporal bone: as, petromastoid cells; the petromastoid bone tissue.
- The petromastoid bone.
Sentence for "petromastoid"
- The petromastoid part is developed from…
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