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ultrapure

American  
[uhl-truh-pyoor] / ˌʌl trəˈpjʊər /

adjective

  1. extremely pure, especially without impurities.

    ultrapure silicon for semiconductors.


Other Word Forms

Etymology

Origin of ultrapure

First recorded in 1960–65; ultra- + pure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The plants were supplied with a nutrient solution made of ultrapure water, salts, nutrients, and one of the medications for as long as 45 days.

From Science Daily Mar. 15, 2026

I read your piece on ultrapure water and I’m intrigued, but I have to be honest with you.

From MarketWatch Dec. 12, 2025

The process to make solar wafers starts with polysilicon, an ultrapure substance made from quartzite.

From Barron's Nov. 7, 2025

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

From New York Times Jul. 22, 2023

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

From Science Magazine Mar. 28, 2022

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