線せん維い膜まくMeanings1nounfibrous capsule; tunica fibrosamedicineMedical term for a fibrous membrane or capsule, such as the outer layer of an organ.肝かん臓ぞうの線せん維い膜まくはグリソン鞘しょうとも呼よばれる。The fibrous capsule of the liver is also called Glisson's capsule.