About Us | Privacy | Site Map
May 22, 2013
Font Size
A
A
A

Definition of Mastoid

Mastoid: The rounded protrusion of bone just behind the ear. The mastoid was once thought to look like a breast (hence its name).

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=4295
Last Editorial Review: 3/19/2012

Medical Dictionary Definitions A - Z

Search Medical Dictionary
Print
Privacy Policy

Women's Health

Find out what women really need.

Please acknowledge your agreement





Featured Topics

Medical Dictionary


or A-Z List
Use Pill Finder Find it Now

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies