petrosal

[pi-troh-suh l]

adjective

petrous; hard or stony.
Anatomy. of or relating to the petrous portion of the temporal bone.

Origin of petrosal

1735–45; < Latin petrōs(us) rocky (see petro-¹, -ose¹) + -al¹

Related formssub·pe·tro·sal, adjectivesu·per·pe·tro·sal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for petrosal

Historical Examples of petrosal

If, in spite of this, bleeding still continues, it presumably comes from the petrosal sinus.
A System of Operative Surgery, Volume IV (of 4)
Various
This is usually due to extension of the infection along the petrosal sinuses, or perhaps along the transverse sinus.
A System of Operative Surgery, Volume IV (of 4)
Various

British Dictionary definitions for petrosal

petrosal

adjective

anatomy of, relating to, or situated near the dense part of the temporal bone that surrounds the inner ear

Word Origin for petrosal

C18: from Latin petrōsus full of rocks, from petra a rock, from Greek

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

petrosal in Medicine

petrosal

[pə-trō′səl]

adj.

Relating to or located near the petrous portion of the temporal bone.