1

mastoid

play
adjective mas·toid \ˈmas-ˌtȯid\

Definition of mastoid

  1. 1 :  being the process of the temporal bone behind the ear; also :  being any of several bony elements that occupy a similar position in the skull of lower vertebrates

  2. 2 :  of, relating to, or occurring in the region of the mastoid process

Origin and Etymology of mastoid

New Latin mastoides resembling a nipple, mastoid, from Greek mastoeidēs, from mastos breast


First Known Use: 1732


2

mastoid

noun mas·toid

Definition of mastoid

  1. :  a mastoid bone or process

1840

First Known Use of mastoid

1840


Medical Dictionary

1

mastoid

play
adjective mas·toid \ˈmas-ˌtȯid\

Medical Definition of mastoid

  1. :  of, relating to, or being the mastoid process; also :  occurring in the region of the mastoid process


2

mastoid

noun mas·toid

Medical Definition of mastoid

  1. :  a mastoid bone or process


Learn More about mastoid


Seen and Heard

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

WORD OF THE DAY

an alert or lookout

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ