petrosal

adjective
pe·​tro·​sal | \ pə-ˈtrō-səl How to pronounce petrosal (audio) \

Definition of petrosal

: of, relating to, or situated in the region of the petrous portion of the temporal bone or capsule of the inner ear

First Known Use of petrosal

1713, in the meaning defined above

History and Etymology for petrosal

Latin petrōsus "rocky, stony" (in New Latin os petrōsum, apophysis petrōsa, names for the petrous portion of the temporal bones) + -al entry 1 — more at petrous

Keep scrolling for more

Learn More about petrosal

Statistics for petrosal

Look-up Popularity

Time Traveler for petrosal

The first known use of petrosal was in 1713

See more words from the same year

Keep scrolling for more

More Definitions for petrosal

petrosal

adjective
pe·​tro·​sal | \ pə-ˈtrō-səl How to pronounce petrosal (audio) \

Medical Definition of petrosal

 (Entry 1 of 2)

: of, relating to, or situated in the region of the petrous portion of the temporal bone or capsule of the inner ear

petrosal

noun

Medical Definition of petrosal (Entry 2 of 2)

Comments on petrosal

What made you want to look up petrosal? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

involving a confidence or trust

Get Word of the Day daily email!

Test Your Vocabulary

Word Puzzles

  • alt 57589b2b4c6a3
  • Which answer pairs best with each of the following words? living, estate, club, music, road, mile
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!