Sarcoidosis. Sarcoidosis is a disease that causes your immune system to overreact, which can lead to health issues. It can cause lung damage, skin rashes, and eye disease and can affect other organs of the body. Learn About Sarcoidosis
goodell's sign. goodell's sign in Medicine Expand. Goodell's sign GoodÂ·ell's sign (gud'Élz) n. An indication of pregnancy in which the cervix and vagina soften.
Definition of knell. 1  1 : a stroke or sound of a bell especially when rung slowly (as for a death, funeral, or disaster) 2  2 : an indication of the end or the failure of something sounded the death knell for our hopes.