petrosal

[ pi-troh-suhl ]

adjective

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

petrosal

/ pɛˈtrəʊsəl /

adjective

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

Other Words From

• subpe·trosal adjective
• super·pe·trosal adjective

Word History and Origins

Origin of petrosal¹

1735–45; < Latin petrōs ( us ) rocky ( petro- ¹, -ose ¹ ) + -al ¹

Word History and Origins

Origin of petrosal¹

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

Example Sentences

The palatine appears to me to have been rightly regarded by Jackson and Clarke as the great superficial petrosal of Mammals.

From Project Gutenberg

If there be bleeding, it may be due to the sinus being obliterated incompletely, or it may come from the superior petrosal sinus.

From Project Gutenberg

If, in spite of this, bleeding still continues, it presumably comes from the petrosal sinus.

From Project Gutenberg

This is usually due to extension of the infection along the petrosal sinuses, or perhaps along the transverse sinus.

From Project Gutenberg