ultrapure

[uhl-truh-pyoor]

adjective

1. extremely pure, especially without impurities.

   ultrapure silicon for semiconductors.

Other Word Forms

• ultrapurely adverb
• ultrapurity noun

Word History and Origins

Origin of ultrapure¹

First recorded in 1960–65; ultra- + pure

Example Sentences

That works to the advantage of Desert Monks, which has capitalized on its access to large quantities of ultrapure water.

Read more on New York Times

Proposed a decade ago, it’s a scaled-up version of the storied Super-K detector and will consist of a cylindrical stainless steel tank 78 meters tall and 74 meters wide, holding 260,000 tons of ultrapure water—five times as much as Super-K.

Read more on Science Magazine

Hyper-K will consist of a subterranean cylindrical tank 70 meters tall and filled with 260,000 tons of ultrapure water.

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Rather than relying on ultrapure water-purification systems, such as Milli-Q, that many labs use, Jogler’s group makes its own pure water by distilling it, twice.

Read more on Nature

The detector consists of 50,000 tonnes of ultrapure water surrounded by a vast array of light sensors.

Read more on Nature