Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Petrous" Definition
adjective
Of or relating to the very dense, hard portion of the temporal bone that forms a protective case for the inner ear.
Source: American Heritage Dictionary
Of, relating to, or resembling rock, especially in hardness; stony.
Source: American Heritage Dictionary
Of, relating to, or constituting the exceptionally hard and dense portion of the human temporal bone that contains the internal auditory organs.
Source: Merriam-Webster