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Membrane definition

mĕmbrān
membranes
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Frequency:
A thin, pliable sheet or layer of natural or synthetic material.

The resonating membrane of a kazoo.

noun
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A piece of parchment.
noun
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A thin, flexible layer of tissue that covers, lines, separates, or connects cells or parts of an organism. Membranes are usually made of layers of phospholipids containing suspended protein molecules and are permeable to water and fat-soluble substances.
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A thin, soft, pliable sheet or layer, especially of animal or vegetable tissue, serving as a covering or lining, as for an organ or cell.
noun
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A thin, pliable layer of tissue covering surfaces or separating or connecting regions, structures, or organs of a living organism.
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A semipermeable layer that bounds a cell or an organelle, typically consisting of lipids and proteins.
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Any thin, flexible layer or material designed to separate, filter, etc.
noun
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(chemistry) A thin sheet of natural or synthetic material that is permeable to substances in solution.
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A thin, pliable layer of tissue covering surfaces or separating or connecting regions, structures, or organs of a living organism.
noun
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A semipermeable layer that bounds a cell or an organelle, typically consisting of lipids and proteins.
noun
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(chemistry) A thin sheet of natural or synthetic material that is permeable to substances in solution.
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A flexible enclosing or separating tissue forming a plane or film and separating two environments (usually in a plant or animal).
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A mechanical, thin, flat flexible part that can deform or vibrate when excited by an external force.
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A flexible or semi-flexible covering or waterproofing whose primary function is to exclude water.
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(chemistry) A thin sheet of natural or synthetic material that is permeable to substances in solution.
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Other Word Forms

Noun

Singular:
membrane
Plural:
membranes

Origin of membrane

  • Latin membrāna skin from membrum member of the body

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin membrāna (“skin of body”).

    From Wiktionary

Membrane Sentence Examples

  • Alex pulled the membrane from the foal's nose and stepped back.

  • Those organisms which possess the latter are a little higher in the scale of life than those which remain unclothed by it, but a comparison of the behaviour of the two quickly enables us to say that the membrane is of but secondary importance, and that for those which possess it, it is nothing more than a protective covering for the living substance.

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