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
Examination revealed bradycardia, i.e., a slow heart rate, a blue tinge to the dog's mucus membranes—often a sign of too much unoxygenated hemoglobin circulating through the system—and dilated pupils.
—
Jennifer Ouellette, ArsTechnica, 18 Aug. 2025
To help control the spice level of the jalapeno pepper, remove the seeds and membrane inside the pepper.
—Sarah Martens, Better Homes & Gardens, 15 Aug. 2025
This likely relates to additional functions that specific lysosomes have, such as sensing nutrients and repairing broken membranes.
—Katarina Zimmer, JSTOR Daily, 14 Aug. 2025
The agency also warns that saliva contact from a bat to a human’s mucus membrane or other physical contact with a bat can be considered a risk for rabies exposure.
—Owen Clarke, Outside, 14 Aug. 2025
See All Example Sentences for membrane
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Jennifer Ouellette, ArsTechnica, 18 Aug. 2025
To help control the spice level of the jalapeno pepper, remove the seeds and membrane inside the pepper.
—Sarah Martens, Better Homes & Gardens, 15 Aug. 2025
This likely relates to additional functions that specific lysosomes have, such as sensing nutrients and repairing broken membranes.
—Katarina Zimmer, JSTOR Daily, 14 Aug. 2025
The agency also warns that saliva contact from a bat to a human’s mucus membrane or other physical contact with a bat can be considered a risk for rabies exposure.
—Owen Clarke, Outside, 14 Aug. 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 29 Aug. 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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