Noun: psammoma
- A tumour derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles
"Psammoma bodies were observed in the meningioma biopsy";
- sand tumor [US], sand tumour [Brit, Cdn]
Derived forms: psammomas
Type of: neoplasm, tumor [US], tumour [Brit, Cdn]
Encyclopedia: Psammoma