ultrapure
adjective
ul·tra·pure
ˌəl-trə-ˈpyu̇r 
: 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
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
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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
Cite this Entry
“Ultrapure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrapure. Accessed 1 Jul. 2025.
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