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ultrapure

[ uhl-truh-pyoor ]

adjective

  1. extremely pure, especially without impurities:

    ultrapure silicon for semiconductors.

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Other Words From

  • ultra·purely adverb
  • ultra·puri·ty noun

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Word History and Origins

Origin of ultrapure1

First recorded in 1960–65; ultra- + pure

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Example Sentences

He was part of a team at New York University that anchored in place cylinders of ultrapure ice.

After dumping those wires into ultrapure water, they flash-froze the mix in liquid nitrogen.

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ultra-processedultrared

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