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
Imaging suggested Bryan’s spleen might be enlarged, and there was blood in the membrane that lines the abdominal cavity, though there was no active hemorrhage.
—
Andrew Cunningham, ArsTechnica, 15 Apr. 2026
Be sure to wash the area—and your hands—thoroughly after the membrane has been removed and discarded.
—Stacey Lastoe, Southern Living, 10 Apr. 2026
The cell does this with a membrane permeable enough to let nutrients in but solid enough to hold the cell together, plus molecular controls to modulate that permeability as needed.
—Amanda Gefter, Quanta Magazine, 10 Apr. 2026
Line the bottom with landscape cloth, a porous membrane that allows for drainage while keeping weeds at bay.
—David Beaulieu, The Spruce, 6 Apr. 2026
See All Example Sentences for membrane
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Andrew Cunningham, ArsTechnica, 15 Apr. 2026
Be sure to wash the area—and your hands—thoroughly after the membrane has been removed and discarded.
—Stacey Lastoe, Southern Living, 10 Apr. 2026
The cell does this with a membrane permeable enough to let nutrients in but solid enough to hold the cell together, plus molecular controls to modulate that permeability as needed.
—Amanda Gefter, Quanta Magazine, 10 Apr. 2026
Line the bottom with landscape cloth, a porous membrane that allows for drainage while keeping weeds at bay.
—David Beaulieu, The Spruce, 6 Apr. 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 23 Apr. 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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