brain sand

noun

: small grains of calcareous matter in the brain (as in the pineal gland) that occur especially in association with aging

called also acervulus, acervulus cerebri

Dictionary Entries Near brain sand

Cite this Entry

“Brain sand.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/brain%20sand. Accessed 6 Dec. 2022.

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