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
Many caregivers first hear about PSMA when a doctor recommends a PSMA-PET (prostate-specific membrane antigen positron emission tomography) scan.
—
Lauryn Higgins, Flow Space, 15 June 2026
First came a membrane, then a drainage layer, a ventilation system with irrigation and a root zone in a sand and soil mixture.
—Tim Newcomb, Forbes.com, 13 June 2026
Before installation begins, contractors should evaluate the subfloor and, when necessary, install an uncoupling membrane to absorb movement and help prevent cracking.
—Angelika Pokovba, Martha Stewart, 12 June 2026
All your Dad has to do is fill it and drink—the microfilter membrane will do the rest by removing chlorine odors, dirt, bacteria, and any other grossness floating around in there.
—Francesca Krempa, Travel + Leisure, 11 June 2026
See All Example Sentences for membrane
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Lauryn Higgins, Flow Space, 15 June 2026
First came a membrane, then a drainage layer, a ventilation system with irrigation and a root zone in a sand and soil mixture.
—Tim Newcomb, Forbes.com, 13 June 2026
Before installation begins, contractors should evaluate the subfloor and, when necessary, install an uncoupling membrane to absorb movement and help prevent cracking.
—Angelika Pokovba, Martha Stewart, 12 June 2026
All your Dad has to do is fill it and drink—the microfilter membrane will do the rest by removing chlorine odors, dirt, bacteria, and any other grossness floating around in there.
—Francesca Krempa, Travel + Leisure, 11 June 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 17 Jun. 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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