Chiari surgery A posterior fossa decompression is a surgical procedure performed to remove the bone at the back of the skull and spine. The dura overlying the tonsils is opened and a patch is sewn to expand the space, similar to letting out the waistband on a pair of pants.
Undercapitalization - Undercapitalization refers to any scenario or context where companies are in a dire position of not being able to get the funding or monies they require.
Hyperpigmentation is skin discoloration that results in the darkening of the skin. This usually results in dark spots, dark patches, large dark areas, and such. With hyperpigmentation, there is a concentration of melanin (the pigmentation that causes darker skin) in a particular area.