alginate

noun

al·​gi·​nate ˈal-jə-ˌnāt How to pronounce alginate (audio)
: a salt or ester of alginic acid

Examples of alginate in a Sentence

Recent Examples on the Web
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Scientists say sargassum contains alginate, a natural ingredient commonly used to stabilize and thicken foods such as ice cream, sauces and milk alternatives. Bri Buckley, CBS News, 12 May 2026 The first of these is alginate (derived from seaweed), which forms a gel when exposed to liquids (such as blood). Christopher McFadden, Interesting Engineering, 8 Feb. 2026 The alginate and gellan gum turn from a powder into a gel in the presence of blood immediately upon contact. New Atlas, 21 Jan. 2026 Sea Vegetables – The alginates in sea vegetables are tough to compete with in their natural ability to support the body in eliminating metals and other toxins. Mélanie Nauche, Vogue, 20 Dec. 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 20 May. 2026.

Medical Definition

alginate

noun
al·​gi·​nate ˈal-jə-ˌnāt How to pronounce alginate (audio)
: a salt of alginic acid

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