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View synonyms for petrous

petrous

[ pe-truhs, pee- ]

adjective

  1. Anatomy. noting or pertaining to the hard dense portion of the temporal bone, containing the internal auditory organs; petrosal.
  2. like stone, especially in hardness; stony; rocky.


petrous

/ ˈpiː-; ˈpɛtrəs /

adjective

  1. anatomy denoting the dense part of the temporal bone that surrounds the inner ear
  2. rare.
    like rock or stone


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Other Words From

  • super·petrous adjective

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Word History and Origins

Origin of petrous1

1350–1400; Middle English (< Middle French petros ) < Latin petrōsus rocky. See petr-, -ous

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Word History and Origins

Origin of petrous1

C16: from Latin petrōsus full of rocks

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Example Sentences

By this means the posterior surface of the petrous bone can be exposed as far inwards as the internal auditory meatus.

The bony labyrinth presents a series of cavities which are channelled through the substance of the petrous bone.

From the surrounding 794 mesoderm the petrous bone is formed by a process of chondrification and ossification.

On its inner side is a small air chamber in the petrous portion of the temporal bone, called the cavity of the tympanum.

The bones related to the organ of hearing, the tympanis and petrous bones, are very solid and dense in structure.

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