polysaccharide

noun
poly·​sac·​cha·​ride | \ ˌpä-lē-ˈsa-kə-ˌrīd How to pronounce polysaccharide (audio) \

Definition of polysaccharide

: a carbohydrate that can be decomposed by hydrolysis into two or more molecules of monosaccharides especially : one (such as cellulose, starch, or glycogen) containing many monosaccharide units and marked by complexity

Examples of polysaccharide in a Sentence

Recent Examples on the Web Similarly, to trigger more robust protection in the elderly, a shot of a pneumococcal conjugate vaccine is boosted by one that contains a pneumococcal polysaccharide. Jon Cohen, Science | AAAS, 12 Feb. 2021 The scales of chitin (a polysaccharide common to insects) are arranged like roof tiles. Jennifer Ouellette, Ars Technica, 11 Sep. 2020 Risk for the coronavirus was reduced in those who had a pneumococcal polysaccharide or influenza vaccine, or were on melatonin, paroxetine, or carvedilol, according to Clinic research. Julie Washington, cleveland, 16 June 2020 The risk calculator study found that patients who received the pneumococcal polysaccharide vaccine (PPSV23) and flu vaccine were less likely to test positive for COVID-19 than those who didn’t receive the vaccinations. Julie Washington, cleveland, 16 June 2020 They are generally made of long strings of those simple sugars, called polysaccharides (i.e. many sugars). Carolyn L. Todd, SELF, 23 May 2019 That discovery, known as conjugation, involves attaching proteins to the polysaccharides — complex sugars — on the bacterium’s outer capsule. BostonGlobe.com, 19 Dec. 2019 The problem was that the vaccine, known as a polysaccharide because it was based on sugar molecules that form the outer capsule of the bacteria, was not easily visible to infant immune systems. Emily Langer, Washington Post, 20 Dec. 2019 The next generation of vaccines, made of just the surface polysaccharides, were safer. BostonGlobe.com, 19 Dec. 2019

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

1892, in the meaning defined above

History and Etymology for polysaccharide

International Scientific Vocabulary

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Time Traveler for polysaccharide

Time Traveler

The first known use of polysaccharide was in 1892

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Dictionary Entries Near polysaccharide

polyribosome

polysaccharide

polysaccharose

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Statistics for polysaccharide

Cite this Entry

“Polysaccharide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polysaccharide. Accessed 28 Jul. 2021.

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More Definitions for polysaccharide

polysaccharide

noun
poly·​sac·​cha·​ride | \ -ˈsak-ə-ˌrīd How to pronounce polysaccharide (audio) \

Medical Definition of polysaccharide

: a carbohydrate that can be decomposed by hydrolysis into two or more molecules of monosaccharides especially : one (as cellulose, starch, or glycogen) containing many monosaccharide units and marked by complexity

called also glycan

More from Merriam-Webster on polysaccharide

Britannica.com: Encyclopedia article about polysaccharide

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