psammoma

Definitions

  • WordNet 3.6
    • n psammoma a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles
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Century Dictionary and Cyclopedia
    • n psammoma A tumor containing abundant, calcareous deposit, usually growing from the membranes of the brain, and most frequently a myxoma or fibroma.
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