Definition of membrane noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈmembreɪn//
    ; NAmE NAmE//ˈmembreɪn//
    [countable, uncountable] Cell biology
    jump to other results
  1. 1 a thin layer of skin or tissue that connects or covers parts inside the body The virus passes through the cell membrane. see also mucous membrane
  2. 2 a very thin layer found in the structure of cells in plants See related entries: Cell biology
  3. 3a thin layer of material used to prevent air, liquid, etc. from entering a particular part of something a waterproof membrane
  4. Word Originlate Middle English: from Latin membrana, from membrum ‘limb’.
See the Oxford Advanced American Dictionary entry: membrane

Other results

All matches