Membrane most commonly means a thin, selective barrier, but it is sometimes used for films that function as separators, like biological membranes. Membrane may also refer to:

Look up membrane in Wiktionary, the free dictionary.

Biology:

• Isolating tissues formed by layers of cells
  • Amnion, a membrane in the amniotic sac
  • Basement membrane, a thin sheet of fibers that underlies the epithelium
  • Chorioallantoic membrane, a vascular membrane found in eggs of birds, reptiles and other animals
  • Eardrum, more formally known as Tympanic membrane
  • Fetal membrane, the amnion and chorion which surround and protect a developing fetus
  • Mucous membrane, linings of mostly endodermal origin which are involved in absorption and secretion
  • Serous membrane, a smooth membrane consisting of a thin layer of cells, which secrete serous fluid
  • Tunic membrane, protective membrane covering the testes
  • Patagium, also known as "flight membrane", in some flying and gliding animals
  • Pterygium, a triangular membrane occurring in eyes
• Cell membranes:
  • Plasma membrane, a membrane that separates the interior of all cells from the outside environment
  • Inner nuclear membrane, the biological membrane of nucleus
  • Outer membrane (disambiguation), several meanings

Other uses:

• Acoustic membrane, a thin vibrating layer that produces sound
  • Membranophone, a musical instrument that uses this principle, including most drums
• Membrane keyboard, a computer keyboard whose keys are pressure pads that have only outlines and symbols printed on a flat, flexible surface
• Membrane structure, a sort of spatial structure made of tensioned membranes
• Membrane (M-Theory), a spatially extended mathematical concept that appears in string theory and related theories
• Synthetic membrane, a synthetically created membrane which is usually intended for separation purposes in laboratory or in industry
• The Membranes, a punk band