Medical Dictionary

petrosal nerve

noun

Medical Definition of PETROSAL NERVE

:  any of several small nerves passing through foramina in the petrous portion of the temporal bone: as a :  deep petrosal nerve b :  greater petrosal nerve c :  lesser petrosal nerve
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears