Syringomyelia (SM) is a disease in which there is a syrinx, or cyst, in the spinal cord. The syrinx is filled with cerebrospinal fluid (CSF). Due to normal activities like coughing and straining, SM cavities can slowly become larger over a period of time, often years.
Freebase(0.00 / 0 votes)Rate this definition: Darien. Darien is a town in Fairfield County, Connecticut, United States. A relatively small community on Connecticut's Gold Coast, the population was 20,732 at the 2010 census. Darien was listed at #9 on CNN Money's list of top-earning towns in the United States as of 2011.
Keep in touch! Darien Lake Performing Arts Center, also known as the PAC, is the largest outdoor music venue in upstate New York with a seating capacity of 21,600. The venue opened in the 1990s as a replacement for the Lakeside Amphitheater concert, and has since drawn in hundreds of thousands of music lovers from all over the country and Canada.