Definition of "pannus"

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

(meteorology) 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) A tent for a wound.  examples

(medicine) A birthmark on the skin.  examples