Auscultogram from normal and abnormal heart sounds In medicine, a<unk> is a hole or a small passage that moves, or allows movement of, fluid from one part of the body to another. The term may describe either congenital or acquired<unk> ; acquired<unk>  (sometimes referred to as iatrogenic<unk>  may be either biological or mechanical. __TOC__
Shunt 
Nail disease
Glossoptosis
Stunt 
Dentures
Nose-blowing
Gestaltzerfall
Jaw abnormality