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   membrane

   /ˈmɛmbreɪn/

   noun

   • 1. a thin sheet of tissue or layer of cells acting as a boundary, lining, or partition in an organism: "the nucleus is a distinct region with a membrane around it"
   • ▪ a thin pliable sheet of material forming a barrier or lining: "the concrete should include a membrane to prevent rising damp"
   • ▪ a microscopic double layer of lipids and proteins forming the boundary of cells or organelles.

   Word Origin late Middle English: from Latin membrana, from membrum ‘limb’.

   Derivatives

   • 1. membranaceous adjective
   • 2. membraneous adjective
   • 3. membranous adjective

   Scrabble Points: 14

   • M

     3

   • E

     1

   • M

     3

   • B

     3

   • R

     1

   • A

     1

   • N

     1

   • E

     1

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