Enter Member/Subscriber ID below as it appears on your BlueCross BlueShield of Tennessee ID card. For example, enter ID number ZEC415012018 as * * *
Noun[edit] cavity â(plural cavities) 1  A hole or hollow depression. 2  A hollow area within the body (such as the sinuses). ( dentistry) A soft area in a decayed tooth.
[pathology] any small sac or cavity, especially one containing serous fluid | a blister | [geology] a rounded cavity within a rock formed during ... (22 of 285 words, 5 definitions, 2 usage examples, pronunciation) wwwâ.collinsdictionaryâ.comâ/dictionaryâ/englishâ/vesicle.