membrane

noun

mem·​brane ˈmem-ˌbrān How to pronounce membrane (audio)
1
: a thin soft pliable sheet or layer especially of animal or plant origin
2
: a piece of parchment forming part of a roll
membraned adjective

Examples of membrane in a Sentence

Recent Examples on the Web
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.
Because the bacteria in the study were gathering more PFAS than could feasibly fit on their membrane, however, the team thought the chemicals must have actually entered the organisms. Nora Bradford, Scientific American, 4 July 2025 Wayne Disposal has facilities to capture and collect hazardous waste-containing fluids leaking through its protective membranes. Keith Matheny, Freep.com, 3 July 2025 Their comfort, genuinely breathable yet waterproof membrane, and great traction are great for novice and seasoned hikers alike. Asia London Palomba, Travel + Leisure, 3 July 2025 Intrepid is also developed in eco water-resistant versions, in pure form or blended with cashmere and combined with a lightweight five-micron membrane for outerwear and overcoats. Martino Carrera, Footwear News, 1 July 2025 See All Example Sentences for membrane

Word History

Etymology

Middle English, from Latin membrana skin, parchment, from membrum

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of membrane was in the 15th century

Browse Nearby Words

Cite this Entry

“Membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/membrane. Accessed 9 Jul. 2025.

Kids Definition

membrane

noun
mem·​brane ˈmem-ˌbrān How to pronounce membrane (audio)
: a thin soft flexible sheet or layer especially of a plant or animal part (as a cell, tissue, or organ)
membranous
ˈmem-brə-nəs
adjective

Medical Definition

membrane

noun
mem·​brane ˈmem-ˌbrān How to pronounce membrane (audio)
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
membraned adjective

More from Merriam-Webster on membrane

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