ultrapure

American  

[uhl-truh-pyoor] / ˌʌl trəˈpyʊər /

adjective

1. extremely pure, especially without impurities.

   ultrapure silicon for semiconductors.

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Other Word Forms

• ultrapurely adverb
• ultrapurity noun

Etymology

Origin of ultrapure

First recorded in 1960–65; ultra- + pure

Example Sentences

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

From MarketWatch

One advanced fab burns through roughly 10 million gallons of ultrapure water a day, about what a mid-sized American city uses.

From MarketWatch

Ultrapure water, or UPW if you want to sound smart at parties, is water stripped of almost everything.

From MarketWatch

Advanced chip-fabrication plants — fabs, in industry shorthand — can’t run without ultrapure water.

From MarketWatch

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

From Barron's