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.
stun (stÊn) v. stunned, stunâ¢ning, n. v.t. 1. to deprive of consciousness, feeling, or strength by or as if by a blow, fall, etc. 2. to astonish; astound; amaze. 3. to shock; overwhelm. 4. to daze or bewilder by noise. n. 5. the act of stunning.