n.
Pronunciation: - ' dän-tiks
Function: noun plural but singular or plural in construction
Etymology: New Latin periodontium periodontal tissue, from peri- + Greek odont-, odous, od ō n tooth ― more at TOOTH
Date: circa 1944
: a branch of dentistry that deals with diseases of the supporting and investing structures of the teeth including the gums, cementum, periodontal membranes, and alveolar bone
– peri · odon · tist \ - ' dän-tist \ noun