psammoma

noun

psam·mo·ma sa-ˈmō-mə

plural psammomas also psammomata -mət-ə

: a hard fibrous tumor of the meninges of the brain and spinal cord containing calcareous matter

psammomatous

sa-ˈmō-mət-əs

-ˈmä-

adjective

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“Psammoma.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/psammoma. Accessed 31 Oct. 2025.

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