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periodontal (adj.)

"surrounding a tooth, pertaining to the lining membrane of the socket of a tooth," 1848, literally "around the tooth," from peri- "around" + Greek odon (genitive odontos) "tooth" (from PIE root *dent- "tooth").

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Definitions of periodontal from WordNet

periodontal (adj.)
of or relating to or involving or practicing periodontics;
periodontal disease
Synonyms: periodontic
From wordnet.princeton.edu