| 单词 | periodontal membrane |
| 释义 | Definition of periodontal membrane in English:periodontal membranenoun rare
OriginLate 19th century; earliest use found in John S. Billings (1838–1913). Definition of periodontal membrane in US English:periodontal membranenoun rare
OriginLate 19th century; earliest use found in John S. Billings (1838–1913). |
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