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
Specialized proteins, altered membrane compositions and precise control of extracellular fluid chemistry keep neurons in a liquid state, even below 0°C (32°F).
—
Scott Travers, Forbes.com, 24 Jan. 2026
New compounds like antimicrobial peptides, which puncture the membranes of bacteria to kill them, show promise as next-generation drugs.
—André O. Hudson, The Conversation, 21 Jan. 2026
The second was a child with bacterial meningitis, a severe infection that causes inflammation of the membranes around the brain and spinal cord.
—Jonny Williams, The Providence Journal, 21 Jan. 2026
The innovative manufacturing process entails the knit layer of the garment being bonded to the high-performance HDry waterproof and breathable membrane via a 3D technique whereby the finished garments is placed on an inflatable mannequin with the membrane beneath it.
—Martino Carrera, Footwear News, 16 Jan. 2026
See All Example Sentences for membrane
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Scott Travers, Forbes.com, 24 Jan. 2026
New compounds like antimicrobial peptides, which puncture the membranes of bacteria to kill them, show promise as next-generation drugs.
—André O. Hudson, The Conversation, 21 Jan. 2026
The second was a child with bacterial meningitis, a severe infection that causes inflammation of the membranes around the brain and spinal cord.
—Jonny Williams, The Providence Journal, 21 Jan. 2026
The innovative manufacturing process entails the knit layer of the garment being bonded to the high-performance HDry waterproof and breathable membrane via a 3D technique whereby the finished garments is placed on an inflatable mannequin with the membrane beneath it.
—Martino Carrera, Footwear News, 16 Jan. 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 28 Jan. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
