membrane
noun
mem·brane
ˈmem-ˌbrān 
1
: a thin soft pliable sheet or layer especially of animal or plant origin
2
: a piece of parchment forming part of a roll
Examples of membrane in a Sentence
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In general, keeping the ion exchange membrane intact is one of the biggest challenges for scaling this type of process, says Feifei Shi, assistant professor of energy engineering at Penn State.
—
IEEE Spectrum, 26 Feb. 2026
Some older research suggests irritation to the outer membrane of the diaphragm, called the parietal peritoneum, may cause side stitches, and the jostling of your torso during running might increase friction in this area.
—Sarah Klein, Outside, 23 Feb. 2026
Time draws these kids osmotically through a membrane, turning them into things like us, adults captured by the brittle carapaces of our egos.
—Literary Hub, 10 Feb. 2026
They’re lined with a cozy layer of polyester fleece and have a sturdy outer shell made of nylon and spandex coated in a rubber-like TPU membrane.
—Olivia Young, Travel + Leisure, 8 Feb. 2026
See All Example Sentences for membrane
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IEEE Spectrum, 26 Feb. 2026
Some older research suggests irritation to the outer membrane of the diaphragm, called the parietal peritoneum, may cause side stitches, and the jostling of your torso during running might increase friction in this area.
—Sarah Klein, Outside, 23 Feb. 2026
Time draws these kids osmotically through a membrane, turning them into things like us, adults captured by the brittle carapaces of our egos.
—Literary Hub, 10 Feb. 2026
They’re lined with a cozy layer of polyester fleece and have a sturdy outer shell made of nylon and spandex coated in a rubber-like TPU membrane.
—Olivia Young, Travel + Leisure, 8 Feb. 2026
See All Example Sentences for membrane
Cite this Entry
“Membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/membrane. Accessed 6 Mar. 2026.
Copy CitationKids Definition
membrane
noun
mem·brane
ˈmem-ˌbrān
: a thin soft flexible sheet or layer especially of a plant or animal part (as a cell, tissue, or organ)
membranous
adjective
ˈmem-brə-nəs
Medical Definition
membrane
noun
mem·brane
ˈmem-ˌbrān
1
: a thin soft pliable sheet or layer especially of animal or plant origin
2
: a limiting protoplasmic surface or interface see nuclear membrane, plasma membrane
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