# periodontium

> English word · Noun

## Definitions
1. The specialized tissues that both surround and support the teeth, maintaining them in the maxillary and mandibular bones; the tissues including alveolar bone, cementum, gums and periodontal ligament.

## Etymology
From peri- + Ancient Greek ὀδούς (odoús) + -ium.

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