A pilonidal cyst is a unique kind of abscess that occurs in or above the crease of the buttocks. Pilonidal cysts often begin as tiny areas of infection in the base of the area of skin from which hair grows (the hair follicle).
Cofferdam A cofferdam is a temporary enclosure built within, or in pairs across, a body of water and constructed to allow the enclosed area to be pumped out, creating a dry work environment for the major work to proceed.
ïµ A Coffer Dam is a temporary structure designed to keep water and /or soil out of the excavation in which a bridge pier or other structure is built. ïµ Meaning of Coffer Dam : Coffer = Box ïµ To take up the Foundation works in the Marine Region, it is necessary to obstruct the water flow by means of Coffer Dam.