Pannus
/ˈpænəs/noun
A layer or sheet, especially an abnormal fibrovascular membrane or a cloud-like film over a structure.
Did you know?In Latin, *pannus* meant a piece of cloth or rag, and that textile sense survived into medical Latin, where it was repurposed for a membranous “sheet” forming over tissue.
Etymological Timeline
Proto-Indo-European
PIE
*peh₂-
“to weave, spin, or produce cloth-like material”
Latin
Latin
pannus
“a piece of cloth, rag, or scrap of fabric”
Late Latin
Latin
pannus
“a membranous layer or sheet; also a ragged garment”
Medical Latin
Latin
pannus
“a clouding or fibrovascular growth over tissue, especially the cornea”
Modern English
English
pannus
“a pathological membrane or sheet-like layer, especially on the eye”