mastoiditisn.
/ˌmastɔɪˈdʌɪtᵻs/, U.S. /ˌmæstɔɪˈdaɪdᵻs/ Medicine.
Inflammation of the mastoid process, usually caused by spread of bacterial infection from the middle ear.
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the world > health and disease > ill health > a disease > disorders of ear > [noun] > inflammation
otitis1772
labyrinthitis1834
otitis externa1837
otitis interna1839
tympanitis1842
myringitis1857
otitis media1874
mastoiditis1881
mastoid1934
aerotitis media1937
aviator's ear1937
1881 Arch. Otol. 10 368 The opening of the bone in acute mastoiditis commonly shows speedy and favorable recoveries.
1900 N. Oppenheim Med. Dis. Childhood 618 Mastoiditis may be marked by external rupture.
1946 J. Steinbeck Cannery Row xvi. 102 The Ransel kids have all developed mastoiditis.
1993 Mother & Baby Feb. 86/2 Before the advent of antibiotics, complications such as mastoiditis—infection to the bone behind the ear—were relatively common.
This entry has been updated (OED Third Edition, March 2001; most recently modified version published online March 2022).
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n.1881