ultrapure

adjective

ul·​tra·​pure ˌəl-trə-ˈpyu̇r How to pronounce ultrapure (audio)
: extremely pure
ultrapure metals/crystals
especially : extremely clean and free from contaminants such as dirt or bacteria
ultrapure water

Examples of ultrapure 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.
Researchers first treated and sterilized thin sections of fossil using a mixture of ultrapure water and ethanol. Andrew Paul, Popular Science, 6 Feb. 2025 Sapphire is also less sensitive to vibrations and is easier to obtain in ultrapure form than other mineral crystals, such as diamond. IEEE Spectrum, 24 June 2021 The famed Super-Kamiokande detector in Japan, which detected all of 12 neutrinos from a distant supernova in 1987, uses 50,000 metric tons of ultrapure water to catch a glimpse of the occasional neutrino interaction. Paul Sutter, Ars Technica, 11 June 2024 That process requires expensive tools, such as lithography machines, and ultrapure water filtration. Dylan Sloan, Fortune, 10 Apr. 2024 Making chips is one of the most complex industrial processes in the world, and specialized inputs such as high-precision machines and ultrapure chemicals are produced only in other countries and probably will be for years. Nor will everything go smoothly. Geoff Colvin, Fortune, 8 Apr. 2024 Chips must be rinsed with ultrapure water during the manufacturing process, in addition to water being used to cool equipment, as in data centers. Michal Lev-Ram, Fortune, 29 Jan. 2024 Municipalities are also launching water recycling programs to relieve pressure on aquifers: New technologies can now turn very-much-not-consumable wastewater into ultrapure liquid for drinking or watering crops. Matt Simon, WIRED, 24 Jan. 2024 The instrument in a clearing on Newfoundland was quite simple: a glass cylinder, holding a little bit of ultrapure water, securely attached to the ground with wooden stakes. Matt Simon, WIRED, 18 Dec. 2023

Word History

First Known Use

1818, in the meaning defined above

Time Traveler
The first known use of ultrapure was in 1818

Dictionary Entries Near ultrapure

Cite this Entry

“Ultrapure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrapure. Accessed 16 Feb. 2025.

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