# urosteon

> English word · Noun

## Definitions
1. A median ossification at the back of the lophosteon in the sternum of some birds.

## Etymology
From New Latin ūrosteon, from Ancient Greek οὐρᾱ́ (ourā́, “tail”) + 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/urosteon