meningioma
noun
me·nin·gi·o·ma
mə-ˌnin-jē-ˈō-mə
plural meningiomas also meningiomata
mə-ˌnin-jē-ˈō-mə-tə
: a slow-growing encapsulated typically benign tumor arising from the meninges and often causing damage by pressing upon the brain and adjacent parts
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Merriam-Webster unabridged
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