membrane

noun
mem·​brane | \ ˈmem-ˌbrān How to pronounce membrane (audio) \

Definition of membrane

1 : a thin soft pliable sheet or layer especially of animal or plant origin
2 : a piece of parchment forming part of a roll

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Other Words from membrane

membraned \ ˈmem-​ˌbrānd How to pronounce membraned (audio) \ adjective

Examples of membrane in a Sentence

Recent Examples on the Web

They’re made out of fabric with a porous membrane, with each pore 20,000 times smaller than a water droplet. Matt Jancer, Outside Online, "A Eulogy to the Sierra Designs Ultralight Trench," 12 June 2018 The cancer signature detected probably comes from changes in the glycocalyx, a protein and lipid sheath that surrounds the membranes of cells lining the bladder. Diana Gitig, Ars Technica, "Just pee in a cup for bladder cancer detection," 10 Dec. 2018 The patent application goes on to say that the gasket could comprise of a layer of silicone that would act as a membrane. Nick Statt, The Verge, "Apple’s redesigned MacBook Pro keyboard uses new method for repelling dust, reports iFixit," 14 July 2018 Griffin lost his hand because of amniotic-band constriction, a prenatal condition that occurs when a strand of amniotic membrane becomes wrapped around a fetal appendage, preventing its proper development. Mark Inabinett, AL.com, "Senior Bowl's Shaquem Griffin making NFL scouts forget how many hands he has," 25 Jan. 2018 The primary way your body keeps food particles, bacteria, and toxins—actual toxins—inside the intestines (and outside the bloodstream) is thanks to the intestinal membrane, which is lined with finger-like villi, Dr. Singh explains. Sarah Jacoby, SELF, "Leaky Gut Syndrome Isn’t an Official Diagnosis, but the Symptoms Are Real," 19 Mar. 2019 On top of the outermost layer of your roof (or the waterproof membrane, as it is known in roofing parlance), a protective mat or layer of insulation is laid down. Michelle Higgins, New York Times, "The Living Roof Takes Root," 26 June 2018 Scientists successfully mounted a hyper thin, flexible, laser-shooting membrane on cow eyeballs. Laura Yan, Popular Mechanics, "These Contacts Let You Shoot Lasers From Your Eyes," 12 May 2018 These liquids enable ions to flow between electrodes separated by a porous membrane, thus creating a current. Matthew Sedacca, Scientific American, "These New Batteries Won't Make Your Smartphone Explode," 1 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'membrane.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of membrane

15th century, in the meaning defined at sense 1

History and Etymology for membrane

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

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Statistics for membrane

Last Updated

22 Apr 2019

Look-up Popularity

Time Traveler for membrane

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

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More Definitions for membrane

membrane

noun

English Language Learners Definition of membrane

: a thin sheet or layer especially : a thin sheet or layer of tissue that is part of a plant or an animal's body

membrane

noun
mem·​brane | \ ˈmem-ˌbrān How to pronounce membrane (audio) \

Kids Definition of membrane

: a thin soft flexible layer especially of animal or plant tissue mucous membranes

membrane

noun
mem·​brane | \ ˈmem-ˌbrān How to pronounce membrane (audio) \

Medical Definition of membrane

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

Other Words from membrane

membraned \ ˈmem-​ˌbrānd How to pronounce membraned (audio) \ adjective

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More from Merriam-Webster on membrane

Spanish Central: Translation of membrane

Nglish: Translation of membrane for Spanish Speakers

Britannica English: Translation of membrane for Arabic Speakers

Britannica.com: Encyclopedia article about membrane

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