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Definition of membrane noun from the Oxford Advanced American Dictionary

     

    membrane

     noun
    noun
    NAmE//ˈmɛmbreɪn//
     
    [countable, uncountable]
     
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  1. 1a thin layer of skin or tissue that connects or covers parts inside the body see mucous membrane
  2. 2a very thin layer found in the structure of cells in plants
  3. 3a thin layer of material used to prevent air, liquid, etc. from entering a particular part of something a waterproof membrane
membranous
 
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NAmE//ˈmɛmbrənəs//
 
adjectiveSee membrane in the Oxford Advanced Learner's Dictionary
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