Dictionary.com

mastoid

[ mas-toid ]
/ ˈmæs tɔɪd /
Save This Word!

adjective Anatomy.
of or relating to the mastoid process.
resembling a breast or nipple.
noun
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of mastoid

1725–35; <New Latin mastoīdēs<Greek mastoeidḗs.See masto-, -oid

OTHER WORDS FROM mastoid

in·ter·mas·toid, adjectivepost·mas·toid, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use mastoid in a sentence

British Dictionary definitions for mastoid

mastoid
/ (ˈmæstɔɪd) /

adjective
shaped like a nipple or breast
designating or relating to a nipple-like process of the temporal bone behind the ear
noun
the mastoid process
informal mastoiditis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK