# exostosis

> English word · Noun

## Definitions
1. A benign, bony growth, often covered with cartilage, on the surface of a bone or tooth.

## Etymology
From Koine Greek ἐξόστωσις (exóstōsis, “diseased excrescence on the bone”), from Ancient Greek ὀστέον (ostéon, “bone”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/exostosis