periodontal
adjective /ˌperiəˈdɒntl/
  /ˌperiəˈdɑːntl/
(medical- related to or affecting the parts of the mouth that surround and support the teeth牙周的 词源1940s: from peri- ‘around’ + Greek odous, odont- ‘tooth’ + -al.
| 词汇 | periodontal | 
| 释义 | periodontaladjective /ˌperiəˈdɒntl/  /ˌperiəˈdɑːntl/(medical 
 | 
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