cholesteatoma

noun

cho·​les·​te·​a·​to·​ma kə-ˌles-tē-ə-ˈtō-mə, ˌkō-lə-ˌstē-, ˌkäl-ə- How to pronounce cholesteatoma (audio)
plural cholesteatomas also cholesteatomata -mət-ə How to pronounce cholesteatoma (audio)
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
cholesteatomatous adjective

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Cite this Entry

“Cholesteatoma.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/cholesteatoma. Accessed 31 Jan. 2023.

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