Term Name:	periodontal ligament
Synonyms:	alveolar periosteum, alveolodental ligament, alveolodental membrane, desmodontium, fibra periodontalis, odontoperiosteum, paradentium, PDL, peridental membrane, peridontal fiber, peridontal fibre, peridontal ligament, peridontal ligament fiber, peridontal ligament fibre, peridontal membrane, peridontium, periodontal fiber, periodontal fibre, periodontium
Definition:	The fibrous connective tissue that surrounds the root of a tooth, separating it from and attaching it to the alveolar bone. It extends from the base of the gingival mucosa to the fundus of the bony socket, and its main function is to hold the tooth in its socket[BTO].
Ontology:	Cell Ontology [UBERON:0008266]