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1. Dictionary

   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

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   • B

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   • R

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   • A

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     1

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   More definitions, origin and scrabble points

2. www.britannica.com › science › membrane-biologyMembrane | Definition, Structure, & Functions | Britannica

   www.britannica.com › science › membrane-biology

   • Cached

   Aug 26, 2024 · membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles.

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3. www.dictionary.com › browse › membraneMEMBRANE Definition & Meaning - Dictionary.com

   www.dictionary.com › browse › membrane

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   A membrane is a thin, pliable sheet or layer of tissue that covers, lines, or connects cells or parts of an organism. Learn more about the different types of membranes, their functions, and their origins from Dictionary.com.

4. Videos

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5. dictionary.cambridge.org › dictionary › englishMEMBRANE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   A membrane is a thin, soft layer of tissue that covers organs or connects parts of living things, or the outer covering of a cell. Learn more about the types, functions and examples of membranes in anatomy, engineering and biology.

6. en.wikipedia.org › wiki › MembraneMembrane - Wikipedia

   en.wikipedia.org › wiki › Membrane

   • Cached

   A membrane is a selective barrier that allows some things to pass through but stops others. Learn about the different types of membranes, such as biological, synthetic, microfiltration, ultrafiltration, nanofiltration and reverse osmosis, and their uses in various fields.

7. www.merriam-webster.com › dictionary › membraneMembrane Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › membrane

   • Cached

   Learn the meaning of membrane as a thin soft pliable sheet or layer of animal or plant origin, or as a piece of parchment. See examples, word history, phrases, and related entries.

8. www.britannica.com › science › cell-membraneCell membrane | Definition, Function, & Structure | Britannica

   www.britannica.com › science › cell-membrane

   • Cached

   Aug 23, 2024 · Cell membrane, thin membrane that surrounds every living cell. The cell membrane functions as a barrier, keeping cell constituents in and unwanted substances out, and as a gate, allowing transport into the cell of essential nutrients and movement from the cell of waste products.

9. dictionary.cambridge.org › us › dictionaryMEMBRANE | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   MEMBRANE meaning: 1. a thin piece of skin that covers or connects parts of a person's or animal's body: 2. a very…. Learn more.