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
Recent Examples on the Web
Researchers at Rice University have developed a new catalyst that slashes iridium use in proton exchange membrane (PEM) electrolyzers by over 80%.
—
Aamir Khollam, Interesting Engineering, 13 Oct. 2025
Chelsea midfielder Enzo Fernandez has withdrawn from the Argentina squad with membrane swelling in his right knee.
—Simon Johnson, New York Times, 11 Oct. 2025
The bottom of the cell is likewise sealed with another flexible silicone membrane, this one internal.
—New Atlas, 9 Oct. 2025
He was also placed on an extracorporeal membrane oxygenation (ECMO) machine, which supports patients with failing hearts and lungs by pumping oxygen throughout the body.
—Vanessa Etienne, PEOPLE, 7 Oct. 2025
See All Example Sentences for membrane
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Aamir Khollam, Interesting Engineering, 13 Oct. 2025
Chelsea midfielder Enzo Fernandez has withdrawn from the Argentina squad with membrane swelling in his right knee.
—Simon Johnson, New York Times, 11 Oct. 2025
The bottom of the cell is likewise sealed with another flexible silicone membrane, this one internal.
—New Atlas, 9 Oct. 2025
He was also placed on an extracorporeal membrane oxygenation (ECMO) machine, which supports patients with failing hearts and lungs by pumping oxygen throughout the body.
—Vanessa Etienne, PEOPLE, 7 Oct. 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 21 Oct. 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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