ultraclean

American  

[uhl-truh-kleen] / ˌʌl trəˈklin /

adjective

1. extremely clean, especially free of germs.

   an ultraclean laboratory.

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Etymology

Origin of ultraclean

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 • Oct. 26, 2023

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

From Scientific American • Feb. 17, 2022

The chalk-size core will be stored in an ultraclean metallic tube, one of 38 samples that the rover eventually collects, with about 30 of those likely to be returned to Earth by later missions.

From Science Magazine • Jul. 21, 2021

Unlike the mass manufacture of a drug that can be given to many people, cell therapies must be made individually for each patient, as well as handled under carefully controlled, ultraclean conditions at specialized facilities.

From Nature • Sep. 26, 2017

But his examination of “the ultraclean revolution,” as he calls it, doesn’t stop at the construction of sewage and water-purification systems.

From New York Times • Oct. 14, 2014