clean room

noun

ˈklēn-ˌrüm How to pronounce clean room (audio)
-ˌru̇m
: a room for the manufacture or assembly of objects (such as precision parts) that is maintained at a high level of cleanliness by special means

Examples of clean room in a Sentence

The microchips are manufactured in a clean room.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
By evening, a clean room, hot shower and hearty meal are waiting. — Hanna Wickes, Charlotte Observer, 4 June 2026 Stay indoors as much as possible, preferably in a clean room with an indoor air filtration device, and avoid cooking or burning candles. — Noe Padilla, USA Today, 20 May 2026 Vacuum And Mop Floors Vacuum the floors and mop them for a perfectly clean room. — Daley Quinn, Southern Living, 11 May 2026 Other than that, a HEPA filter is an excellent option for an ultra-clean room. — Bestreviews, Chicago Tribune, 7 Apr. 2026 See All Example Sentences for clean room

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of clean room was in 1961

Rhymes for clean room

See All Rhymes for clean room

Browse Nearby Words

clean out
clean room
clean-run
See all Nearby Words

Cite this Entry

“Clean room.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clean%20room. Accessed 7 Jul. 2026.

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More from Merriam-Webster on clean room

Britannica.com: Encyclopedia article about clean room

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