Surgical removal of mastoid cells or part or all of the mastoid process.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "mastoidectomy" in a sentence
"No officer, my mother had a double mastoidectomy the year before I was born."
"Performing a mastoidectomy, a group of operations on the temporal bone and middle ear to drain, expo ..."
"The CG was removed by a mastoidectomy procedure and the histopathologic report confirmed the diagnosis of CG."