Definition of psammoma in English:

psammoma

noun

rare
  • A tumour, especially a meningioma, containing rounded, laminated, calcified concretions resembling grains of sand.

Origin

Late 19th century; earliest use found in The Lancet. From German Psammoma from ancient Greek ψάμμος sand + German -oma.

Pronunciation

psammoma

/(p)səˈməʊmə/