(py'pÉ) Plural pupae (py'pÄ) An insect in the nonfeeding stage of development between the larva and adult, during which it typically undergoes a complete transformation within a protective cocoon or hardened case. Only certain kinds of insects, such as moths, butterflies, ants, and beetles, develop as larvae and pupae.
Usual interstitial pneumonia (UIP) is a form of lung disease characterized by progressive scarring of both lungs. The scarring (fibrosis) involves the supporting framework (interstitium) of the lung. UIP is thus classified as a form of interstitial lung disease.
Progressive supranuclear palsy, or PSP, is a rare neurodegenerative disease that is often misdiagnosed as Parkinson's disease because its symptoms are similar. Because of its rarity, PSP is mostly unknown by the general public. PSP develops because of the deterioration of brain cells in a few small but very important areas at the base of the brain. The most important affected area is the substantia nigra. When this area of the brain is affected by the disease, a lot of the palsy's symptoms become more visible.