hydrogel

noun
hy·​dro·​gel | \ ˈhī-drə-ˌjel How to pronounce hydrogel (audio) \

Definition of hydrogel

: a gel composed usually of one or more polymers suspended in water

Examples of hydrogel in a Sentence

Recent Examples on the Web The revolutionary hydrogel could eliminate the need for hundreds of thousands of knee replacements each year, along with many thousands of other joint replacements. Caroline Delbert, Popular Mechanics, "Artificial Cartilage Could Be a Godsend for Our Knees," 7 July 2020 And since this is just the first hydrogel to pass that milestone, that’s not necessarily the ceiling. Caroline Delbert, Popular Mechanics, "Artificial Cartilage Could Be a Godsend for Our Knees," 7 July 2020 But a hydrogel, which is about 50 percent water, is more difficult to cool down once its temperature starts to rise. Theresa Machemer, Smithsonian Magazine, "This Robotic Hand Stays Cool by Sweating," 31 Jan. 2020 Between the carbon film and the metal surface in question, a Jello-like hydrogel—loaded with saltwater—acts as an electrolyte, conducting electrons between the metal and the cathode. Courtney Linder, Popular Mechanics, "In the Near Future, Robots Will Eat Metal for Energy," 17 Apr. 2020 The researchers could split their original brick in half, add extra sand, hydrogel, and nutrients, and watch as bacteria grew two full-size bricks in 6 hours. Robert F. Service, Science | AAAS, "From 'living' cement to medicine-delivering biofilms, biologists remake the material world," 18 Feb. 2020 That way, when the hydrogel touches a metal surface, that area acts like the anode of a battery, letting electrons through to the cathode, which then powers the device. Courtney Linder, Popular Mechanics, "In the Near Future, Robots Will Eat Metal for Energy," 17 Apr. 2020 At the heart of the discovery are small beads made of hydrogel, similar in feel and appearance to gummy candy, but packed with bacteria that feed on industrial pollutants and excrete harmless compounds. oregonlive, "OSU develops potentially ground-breaking approach to cleaning contaminated groundwater," 26 Mar. 2020 Infectious disease and wound care teams were following the baby's condition and using DermaPhor ointment to moisturize her skin and hydrogel on the baby's blistering hand, the report said. Brieanna J. Frank, azcentral, "Valley mom says Banner hospital incubation lights burned her newborn baby," 30 Jan. 2020

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

1864, in the meaning defined above

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Time Traveler for hydrogel

Time Traveler

The first known use of hydrogel was in 1864

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Statistics for hydrogel

Last Updated

28 Aug 2020

Cite this Entry

“Hydrogel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogel. Accessed 29 Sep. 2020.

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More Definitions for hydrogel

hydrogel

noun
hy·​dro·​gel | \ ˈhī-drə-ˌjel How to pronounce hydrogel (audio) \

Medical Definition of hydrogel

: a gel in which the liquid is water a silicone hydrogel used to make soft contact lenses

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