noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A benign bony tumour that typically grows on the skull.
2. 2
   a slow growing benign tumor of consisting of bone tissue; usually on the skull or mandible wordnet

Etymology

From osteo- + -oma.

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