Definition of mastoid in English:

mastoid

Line breaks: mas|toid
Pronunciation: /ˈmastɔɪd
 
/

adjective

Anatomy
  • Relating to the mastoid process: mastoid disease
    More example sentences
    • The relationship between middle ear disease and mastoid development remains unclear although it is known that poor mastoid development is associated with middle ear disease.
    • Cholesterol granuloma is usually associated with chronic middle ear disease and is common in the mastoid antrum and air cells of the temporal bone.
    • Common to all of these patients is an abnormal connection between the sterile subarachnoid space, and the sinonasal region, middle ear cleft and mastoid cavity.

noun

Anatomy Back to top  
  • 1The mastoid process.
    More example sentences
    • Longstanding cholesteatomas expand to involve the mastoid, inner ear, and facial nerve.
    • They were implanted in the mastoid, frontal and maxillary regions for periods of 1 week to 2 months.
    • The group of patients underwent modified radical mastoidectomy because of the presence of a sclerotic mastoid with extensive cholesteatoma.
  • 1.1 (mastoids) [treated as singular] informal Mastoiditis: stop poking your ears out with your biro—you’ll get mastoids

Origin

mid 18th century: via French and modern Latin from Greek mastoeidēs 'breast-shaped', from mastos 'breast'.

More definitions of mastoid

Definition of mastoid in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day maelstrom
Pronunciation: ˈmālˌsträm
noun
a powerful whirlpool in the sea