petrous
English
Etymology
From Middle English, borrowed from Middle French petreux, from Latin petrōsus, from petra, from Ancient Greek πέτρα (pétra).
Adjective
petrous (not comparable)
- Resembling rock or stone in its hardness.
- (anatomy) Of the dense portion of the temporal bone that protects the inner ear.
Translations
anatomy: of the dense portion of the temporal bone
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Further reading
- Temporal bone on Wikipedia.Wikipedia