ex·​tra·​mas·​toid -ˈmas-tȯid How to pronounce extramastoid (audio)
: situated on or affecting the outer surface of the mastoid bone
extramastoid infection

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Cite this Entry

“Extramastoid.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/extramastoid. Accessed 11 Dec. 2023.

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