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.
Machine operators are trained as skilled technicians, not line workers, supported by electrical, mechanical and optical engineers, all working in clean rooms and at control screens absent 1950s blast furnaces. Lilian Raji, Forbes.com, 30 Jan. 2026 Turn the plant upside down and dip the foliage portion into a bucket of clean room-temperature water. Jon Vanzile, The Spruce, 30 Jan. 2026 The scientists were able to create this film of gold supraballs under ambient room conditions, without needing a clean room or specialized equipment to generate extreme temperatures. Chris Young, Interesting Engineering, 29 Jan. 2026 Sometimes the emergency department gets backed up partly because there aren’t enough workers to clean rooms or transport patients from the emergency department to inpatient hospital beds, said Morgan Jurgus, an emergency department assistant at the hospital. Lisa Schencker, Chicago Tribune, 6 Jan. 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

Browse Nearby Words

Cite this Entry

“Clean room.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clean%20room. Accessed 8 Feb. 2026.

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