membrane

Definitions

General English

General Science

  • noun a thin layer of artificial material

Construction

  • The impervious layer or layers of material used in constructing a flat roof.

Medical

  • noun a thin layer of tissue which lines or covers an organ

Real Estate

  • noun a thin, pliable and often porous sheet of any natural or artificial material
http://www.dictionarycentral.com/definition/membrane.html