noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A brain tumour containing concretions resembling grains of sand
2. 2
   a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles wordnet

Synonyms

All synonyms

sand tumor

Etymology

From psammo- + -oma.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.