superclean

adjective
su·​per·​clean | \ ˌsü-pər-ˈklēn How to pronounce superclean (audio) \

Definition of superclean

: extremely clean a superclean laboratory … dust ruined semiconductors that had to be kept superclean.— Myron Magnet Qualifying vehicles include superclean plug-in hybrids and possibly some hydrogen-fueled internal combustion engines.— Michael Cabantuan

First Known Use of superclean

1890, in the meaning defined above

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The first known use of superclean was in 1890

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Cite this Entry

“Superclean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/superclean. Accessed 19 Sep. 2020.

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