cholesteatoma

cho·les·te·a·to·ma

noun
\kə-ˌles-tē-ə-ˈtō-mə, ˌkō-lə-ˌstē-, ˌkäl-ə-\

plural cho·les·te·a·to·mas also cho·les·te·a·to·ma·ta \-mət-ə\

Definition of CHOLESTEATOMA

1

: an epidermoid cyst usually in the brain arising from aberrant embryonic rests and appearing as a compact shiny flaky mass—called also pearly tumor

2

: a tumor usually growing in a confined space (as the middle ear or mastoid) and frequently constituting a sequel to chronic otitis media

—cho·les·te·a·to·ma·tous \-mət-əs\ adjective