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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From alpine-ready Polartec® Power Shield™ Pro and circular-enabled Polartec® Power Shield™ RPM, to the groundbreaking new Polartec® AirCore™—the industry’s first truly air-permeable membrane—the future of weather protection is being rewritten in the Polartec innovation labs.
—
Sj Studio, Sourcing Journal, 10 Nov. 2025
The Argentine Football Association (AFA) said he had been diagnosed with synovitis, a swelling of the synovial membrane, with a statement including a photo of Fernandez with strapping on that knee.
—Colin Millar, New York Times, 9 Nov. 2025
On the functional front, a Vibram outsole delivers traction, a Gore-Tex membrane provides waterproofing, and PrimaLoft provides warmth.
—Ian Servantes, Footwear News, 7 Nov. 2025
The laws have put doctors under increasing strain and surveillance, complicating the standard medical treatments for miscarriage, ectopic pregnancy, premature membrane rupture, and other pregnancy problems.
—Natalie Krebs, NPR, 5 Nov. 2025
See All Example Sentences for membrane
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Sj Studio, Sourcing Journal, 10 Nov. 2025
The Argentine Football Association (AFA) said he had been diagnosed with synovitis, a swelling of the synovial membrane, with a statement including a photo of Fernandez with strapping on that knee.
—Colin Millar, New York Times, 9 Nov. 2025
On the functional front, a Vibram outsole delivers traction, a Gore-Tex membrane provides waterproofing, and PrimaLoft provides warmth.
—Ian Servantes, Footwear News, 7 Nov. 2025
The laws have put doctors under increasing strain and surveillance, complicating the standard medical treatments for miscarriage, ectopic pregnancy, premature membrane rupture, and other pregnancy problems.
—Natalie Krebs, NPR, 5 Nov. 2025
See All Example Sentences for membrane
Cite this Entry
“Membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/membrane. Accessed 26 Nov. 2025.
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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