: a salt or ester of alginic acid

Examples of alginate in a Sentence

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The coating is made in part with alginate which is derived from seaweed but don’t fear, there won’t be any oceanic flavor in your cup. Sabrina Weiss, Peoplemag, 14 Mar. 2024 It was found that sodium alginate alters the electrical charges of clay particles. Mrigakshi Dixit, Interesting Engineering, 24 June 2026 The shelves are crowded with tall deli containers filled with aqua blue passion fruit alginate, jet-black cardamom-and-coffee alginate, and jars of produce at various stages of fermentation. Jenn Harris, Los Angeles Times, 10 Oct. 2024 Made with just six ingredients—water, glucose, fructose, and three gelling agents (sodium alginate, gluconic acid, and calcium carbonate)—these gels are both clean and efficient. Boutayna Chokrane, Wired News, 31 Oct. 2025 See All Example Sentences for alginate

Word History

First Known Use

circa 1909, in the meaning defined above

Time Traveler
The first known use of alginate was circa 1909

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Cite this Entry

“Alginate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alginate. Accessed 7 Jul. 2026.

Medical Definition

alginate

noun
: a salt of alginic acid

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