membrane

noun

mem·brane | \ ˈmem-ˌbrān

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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The membranes of these cancer cells release a certain kind of receptor that’s distinct from healthy cell receptors and acts like a flashing cancer beacon. — Jill Kiedaisch, Popular Mechanics, "Nanoparticles That Zap and Kill Cancer Cells Are a Small Solution to Huge Disease," 9 Jan. 2019 The key components of fish oil, two polyunsaturated fatty acids called eicosapentaenoic acid, or EPA, and docosahexaenoic acid, or DHA, are designed to be in the membranes of cells all throughout the body. — Betsy Mckay, WSJ, "Fish Oil: Hunting for Evidence to Tip the Scales," 2 Jan. 2019 Doctors think surfer’s ear happens because the thin skin of the ear canal doesn’t protect the bone from cold water, which causes inflammation in the membrane on the outside of the bone, called the periosteum. — Kiona N. Smith, Ars Technica, "The skulls of ancient pearl divers come with abnormal ear canal bone growths," 28 Dec. 2018 Work the membrane loose using a knife and then grab and pull it off. — Susan Selasky, Detroit Free Press, "Ribs 101: Pitmasters offer advice on cooking ribs," 1 July 2018 The membrane between online and real life has long since dissolved. — Helena_fitzgerald, The Verge, "The decline of Snapchat and the secret joy of internet ghost towns," 18 May 2018 Cerebrospinal fluid is produced continuously in the brain and is normally absorbed into the bloodstream through protrusions in the outer membrane of the brain, called the dura mater. — Mark Lieber, CNN, "Woman's runny nose was actually fluid from inside her brain," 8 May 2018 MiMedx takes amniotic membrane—thin, moist tissue that protects the fetus—and processes it into wound patches or a powder that can be applied topically or by injection. — Charley Grant, WSJ, "MiMedx Called on Two Lawmakers for Help Before Its Accounting Scandal," 11 Dec. 2018 The alcohols essentially shred the microbes' outer membranes, causing molecular mayhem and the germs’ innards to leak out. — Beth Mole, Ars Technica, "Hospital superbugs are evolving to survive hand sanitizers," 5 Aug. 2018

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.