membranous
adjective medical specialized uk/ˈmem.brə.nəs/ us/ˈmem.brə.nəs/
膜的;似膜的
relating to a membrane or like a membrane (= a very thin layer of tissue that covers or connects parts of the body)
Joints in the body have a membranous lining. 身体关节内有一层膜状的内衬。