Definition of petrous in English:

petrous

Syllabification: pet·rous
Pronunciation: /ˈpetrəs
 
/

adjective

Anatomy
  • another term for petrosal.
    More example sentences
    • The normal course of the internal carotid artery in an adult sees the vessel enter the petrous temporal bone medial to the styloid process via the carotid canal.
    • Caudal to the temporal lobe is the petrous portion of the temporal bone and the mastoid air cells.
    • The jugular foramen, a passage between the petrous portion of the temporal bone and the jugular process of the occipital bone, may be divided into two parts by intrajugular processes.

Origin

late Middle English: from Latin petrosus 'stony, rocky', from petra 'rock', from Greek.

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