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
According to the Cleveland Clinic, LMD is an incurable condition in which cancer cells spread from an advanced cancer to the cerebrospinal fluid and the membranes around the brain and spinal cord.
—
Ashley Hume, FOXNews.com, 28 Sep. 2025
An imbalance can cause brain cells to malfunction, losing their ability to manage ion concentrations across their membranes and propagate action potentials.
—Dan Samorodnitsky, Wired News, 28 Sep. 2025
By stacking these two together in layers, the CNSI team created large, printable membranes that emit bright, stable light and can even be stretched without breaking.
—Christopher McFadden, Interesting Engineering, 27 Sep. 2025
The disease is a cancer found in cerebrospinal fluid, the membranes that surround the brain or the spinal cord, according to the Cleveland Clinic.
—James Powel, USA Today, 25 Sep. 2025
See All Example Sentences for membrane
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Ashley Hume, FOXNews.com, 28 Sep. 2025
An imbalance can cause brain cells to malfunction, losing their ability to manage ion concentrations across their membranes and propagate action potentials.
—Dan Samorodnitsky, Wired News, 28 Sep. 2025
By stacking these two together in layers, the CNSI team created large, printable membranes that emit bright, stable light and can even be stretched without breaking.
—Christopher McFadden, Interesting Engineering, 27 Sep. 2025
The disease is a cancer found in cerebrospinal fluid, the membranes that surround the brain or the spinal cord, according to the Cleveland Clinic.
—James Powel, USA Today, 25 Sep. 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 3 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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