English

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Etymology

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From Middle English, borrowed from Middle French petreux, from Latin petrōsus, from petra, from Ancient Greek πέτρα (pétra).

Adjective

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petrous (not comparable)

  1. Resembling rock or stone in its hardness.
  2. (anatomy) Of the dense portion of the temporal bone that protects the inner ear.

Translations

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Further reading

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Anagrams

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  NODES
Note 1