pannus

A hanging flap of skin or other tissue, especially one covering the cornea (in trachoma) or cartilage (in rheumatoid arthritis).

Climatology, Meteorology, Natural sciences A type of accessory cloud, looking like shreds either attached to, or separated from, the main cloud formation; mainly associated with nimbostratus, cumulus, and cumulonimbus.

Medicine, Sciences A tent for a wound.

Medicine, Sciences A birthmark on the skin.