ultraclean

[ uhl-truh-kleen ]

adjective

1. extremely clean, especially free of germs:

   an ultraclean laboratory.

Word History and Origins

Origin of ultraclean¹

First recorded in 1965–70; ultra- + clean

Example Sentences

The team's qubit is a single electron trapped on an ultraclean solid-neon surface in a vacuum.

From Science Daily

As the winner, BWI receives $2,500 in Cintas bathroom cleaning products and services, plus a Cintas “UltraClean” restroom cleaning service, the company wrote in a release Thursday.

From Washington Times

The proposed center, which Applied Materials calls Epic, is set to have ultraclean production space bigger than three football fields and is designed to give university researchers and other engineers comparable resources to experiment with new materials and techniques for creating advanced chips.

From New York Times

They are made on gigantic, ultraclean factory room floors that can be seven stories tall and run the length of four football fields.

From New York Times

Before it leaves the crater floor, Perseverance will fill two more of its 43 onboard, ultraclean sample tubes.

From Scientific American