A seam on the outside of a steel water tank is often an indication of the presence of a diaphragm. Both bladders and diaphragms serve the same function, creating a pressure differential using compressed air that pushes against the water, ejecting it from the tank.
Exostosis is the medical term for an abnormal growth of bone within the ear canal. It is more commonly referred to as swimmerâs or surferâs ear.xostosis symptoms of include a decrease in hearing sensitivity possibly combined with an increased prevalence of ear infections. Early symptoms include water trapping in the ear canal after swimming. Sometime thereafter, debris trapping and infections make surgery necessary.
1. a benign bony growth projecting outward from a bone surface. 2. osteochondroma .exostotÂ´ic. exostosis cartilagiÂ´nea a variety of osteoma consisting of a layer of cartilage developing beneath the periosteum of a bone. ivory exostosis compact osteoma. multiple exostoses an inherited condition in which multiple cartilaginous or osteocartilaginous excrescences grow out from the cortical surfaces of long bones.