# siphonium

> English word · Noun

## Definitions
1. A bony tube which, in some birds, connects the tympanum with the air chambers of the articular piece of the mandible

## Etymology
See siphon

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