hydrogel

noun

hy·​dro·​gel ˈhī-drə-ˌjel How to pronounce hydrogel (audio)
: a gel composed usually of one or more polymers suspended in water

Examples of hydrogel in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The tiny pores in the hydrogel can hold water as the material thaws so there is no meltwater. ArsTechnica, 31 Aug. 2025 Just like coral themselves, however, some algae are already more heat-resistant than others, and a printer could inject this superior algae in hydrogel alongside the coral larvae, ensuring that the best is available from the beginning. Denise Hruby, Miami Herald, 29 Aug. 2025 In the 20th century, contact lenses became widespread, as plastics and hydrogels revolutionized comfort and wearability. Ethan Siegel, Big Think, 19 Aug. 2025 These powdered hydrogels can be mixed into the soil to act like sponges, absorbing and retaining water. Mary Marlowe Leverette, Southern Living, 16 Aug. 2025 See All Example Sentences for hydrogel

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of hydrogel was in 1864

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Cite this Entry

“Hydrogel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogel. Accessed 12 Sep. 2025.

Medical Definition

hydrogel

noun
hy·​dro·​gel ˈhī-drə-ˌjel How to pronounce hydrogel (audio)
: a gel in which the liquid is water
a silicone hydrogel used to make soft contact lenses
Last Updated: - Updated example sentences
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