sialic acid

noun

Definition of sialic acid

: any of a group of reducing amido acids that are essentially carbohydrates and are found especially as components of blood glycoproteins and mucoproteins

Examples of sialic acid in a Sentence

Recent Examples on the Web This type of linkage makes the sialic acid and galactose stick straight up. Quanta Magazine, "The Animal Origins of Coronavirus and Flu," 25 Feb. 2020 The flu virus normally infects cells in the lungs by binding through its haemagglutinin and neuraminidase proteins to sialic acid on the surface of lung cells. Neil Savage, Scientific American, "The push for better flu therapies," 18 Sep. 2019 Prehuman ancestors lost the ability to make a sugar molecule called a sialic acid. San Diego Union-Tribune, "Heart disease is the price of becoming human, UCSD study finds," 22 July 2019 These include overactive white blood cells and a tendency to diabetes in mice lacking the sialic acid. San Diego Union-Tribune, "Heart disease is the price of becoming human, UCSD study finds," 22 July 2019 This gene included a sialic acid sugar molecule called Neu5Gc. Ashley Strickland, CNN, "Evolution may be why humans are prone to heart attacks, study says," 22 July 2019 This area docks with protrusions of carbohydrate molecules called sialic acids that bristle from cells. Bradley J. Fikes, sandiegouniontribune.com, "By luck, Scripps Research scientists find clue to a powerful new class of flu drugs," 2 Apr. 2018 But this effort has failed, because the sialic acid receptor only binds weakly. Bradley J. Fikes, sandiegouniontribune.com, "By luck, Scripps Research scientists find clue to a powerful new class of flu drugs," 2 Apr. 2018 Influenza viruses famously do this by latching onto sialic acids that hang on the outside of human cells in the respiratory tract. Beth Mole, Ars Technica, "Virus fished from pond cures man’s deadly antibiotic-resistant infection," 20 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sialic acid.' 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 sialic acid

1952, in the meaning defined above

History and Etymology for sialic acid

Greek sialon saliva

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Time Traveler for sialic acid

Time Traveler

The first known use of sialic acid was in 1952

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Cite this Entry

“Sialic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sialic%20acid. Accessed 26 Oct. 2020.

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More Definitions for sialic acid

sialic acid

noun
si·​al·​ic acid | \ (ˌ)sī-ˌal-ik- How to pronounce sialic acid (audio) \

Medical Definition of sialic acid

: any of a group of reducing amido acids that are essentially carbohydrates and are found especially as components of blood glycoproteins and mucoproteins

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