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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That’s because of something called positional alcohol nystagmus, Dr. Piker explains: Within your inner ear, the alcohol gets absorbed at different rates by the fluid and the membrane, which means the two no longer share the same specific gravity.
—
Rachel Nall, SELF, 17 June 2025
About 80 percent of cases start with those skin and mucus membrane masses showing up in the second or third decade of life.
—Eric Berger, ArsTechnica, 12 June 2025
Maintaining what are known as membrane potentials — stable voltages across a neuron’s membrane that ensure that the cell is primed to fire when called upon — is known to account for at least half of the brain’s total energy budget.
—Conor Feehly, Quanta Magazine, 4 June 2025
Meningococcal disease, also known as meningitis, is an infection and inflammation of the fluid and membranes around the brain and spinal cord, according to the Mayo Clinic.
—Kimberlee Speakman, People.com, 21 May 2025
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Rachel Nall, SELF, 17 June 2025
About 80 percent of cases start with those skin and mucus membrane masses showing up in the second or third decade of life.
—Eric Berger, ArsTechnica, 12 June 2025
Maintaining what are known as membrane potentials — stable voltages across a neuron’s membrane that ensure that the cell is primed to fire when called upon — is known to account for at least half of the brain’s total energy budget.
—Conor Feehly, Quanta Magazine, 4 June 2025
Meningococcal disease, also known as meningitis, is an infection and inflammation of the fluid and membranes around the brain and spinal cord, according to the Mayo Clinic.
—Kimberlee Speakman, People.com, 21 May 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 8 Jul. 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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