Used to label an unusually large number of occurrances of a disease or condition in one place. An autism cluster would be an unusually large number of cases of autism in (perhaps) a single locality. Clusters constitute evidence in the search for causes of diseases and conditions.
jawn. 1  a word used by Philly cats to describe anything and everything. NY cats interject with the word joint but it doesn't convey the same feelings. 2  a word used by people in philly, it can mean anything, like a fine girl, a blunt, really, it can be used for everything. it basically means thing.
1 Java (Javanese: Jawa), the most populous and fifth-largest island in Indonesia and the site of its capital, Jakarta. 2  East Java, also called Jawa Timur, a province on the Indonesian island of Java.3  Central Java, also called Jawa Tengah, a province on the Indonesian island of Java. East Java, also called Jawa Timur, a province on the Indonesian island of Java. 2  Central Java, also called Jawa Tengah, a province on the Indonesian island of Java. 3  West Java, also called Jawa Barat, a province on the Indonesian island of Java. 4  Jawa Dam (Jordan) , remains of water works dating from 3000 BC.