coating;  film;  membrane;  tunic (plants);  capsule
 pericardium;  pericardial sac
 protective coating;  protective film;  overcoat
 endometrium;  uterine mucosa
 patagium (vertebrate flying or gliding membrane)
 membranous;  membraneous;  filmy
 property of a film or membrane
 valve (of the heart and the veins)
 mantle (of an invertebrate)
 periodontal membrane;  periodontal ligament
 biological membrane;  biomembrane
 pia mater (membranes surrounding the brain and spinal cord)
 choroid;  chorioid;  choroid coat
 basement membrane;  basal lamina
 synovial membrane;  synovium
 serous membrane;  serosa;  chorion
 biofilm;  biological slime;  biological membrane;  biomembrane
 extracorporeal membrane oxygenation;  ECMO
 Metal Oxide Semiconductor;  MOS
 decidua;  deciduous membrane
 fibrous capsule;  tunica fibrosa
 membranous labyrinth (of the inner ear);  membraneous labyrinth
 film making;  membrane production
 film thickness;  coating thickness
 embryonic membrane;  fetal membrane;  foetal membrane
 cere (skin at the base of a bird's beak)
 cere (skin at the base of a bird's beak)