petrous

pet·rous  (ptrs)

adj.

1. Of, relating to, or resembling rock, especially in hardness; stony.

2. Of or relating to the very dense, hard portion of the temporal bone that forms a protective case for the inner ear.

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[Middle English, from Old French petros, from Latin petrsus, rocky, from petra, rock, from Greek petr; see per-² in Indo-European roots.]

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petrous [ˈpɛtrəs ˈpiː-]

adj

1. (Life Sciences & Allied Applications / Anatomy) Anatomy denoting the dense part of the temporal bone that surrounds the inner ear

2. Rare like rock or stone

[from Latin petrōsus full of rocks]

Thesaurus

Adj.

1.

petrous - (of bone especially the temporal bone) resembling stone in hardness stonelike hard - resisting weight or pressure