Medical dictionary. 2011.
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periodontal abscess — an abscess that arises in the periodontal tissues and is usually an acute manifestation of periodontal disease. * * * an abscess in the periodontal tissue; it may involve the supporting periodontal tissue or the soft tissue wall of a periodontal… … Medical dictionary
membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m … Medical dictionary