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.
Top definition. jawn. 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.
Jawn was initially a term reserved for a thing or a concept that is outstanding. Something badass, something game changing. A particular thingâ¦.âYo, thatâs my jawn!!â âYo, thatâs the jawn.â Then the bastardization hit. Pretty soon potato chips were âjawnsâ âYo, pass me them jawns, yoâ¦â Jawns is an altogether ânuther wordâ¦. Just a lazy noun substituteâ¦.No longer is the item or concept specialâ¦.