mastoiditis

noun
mas·​toid·​itis | \ ˌma-ˌstȯi-ˈdī-təs How to pronounce mastoiditis (audio) \

Definition of mastoiditis

: inflammation of the mastoid and especially of the mastoid cells

First Known Use of mastoiditis

1881, in the meaning defined above

History and Etymology for mastoiditis

mastoid entry 2 + -itis

Keep scrolling for more

Learn More about mastoiditis

Statistics for mastoiditis

Look-up Popularity

Time Traveler for mastoiditis

The first known use of mastoiditis was in 1881

See more words from the same year

Keep scrolling for more

More Definitions for mastoiditis

mastoiditis

noun
mas·​toid·​itis | \ ˌmas-ˌtȯid-ˈīt-əs How to pronounce mastoiditis (audio) \
plural mastoiditides\ -​ˈit-​ə-​ˌdēz How to pronounce mastoiditides (audio) \

Medical Definition of mastoiditis

: inflammation of the mastoid and especially of the mastoid cells

More from Merriam-Webster on mastoiditis

Britannica.com: Encyclopedia article about mastoiditis

Comments on mastoiditis

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

WORD OF THE DAY

a usually brief trip or an expedition

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!