clean room
noun
ˈklēn-ˌrüm 
-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
Example Sentences
The microchips are manufactured in a clean room.
Recent Examples on the Web The core, which stands 10 feet (3 meters) tall and 5 feet (1.5 meters) wide, has taken center stage in the clean room, where NASA teams have assembled spacecraft like Galileo, Cassini and the Mars rovers. 
Ashley Strickland, CNN, 18 Aug. 2022 One day last December, John Walker Moosbrugger, a 25-year-old project manager for the lunar robotics start-up Astrobotic, sat in front of the company’s clean room and watched as an instrument older than him was attached to a moon lander. Rebecca Boyle, Scientific American, 28 July 2022 Enlarge / One of two solar arrays on NASA’s Psyche spacecraft is successfully deployed in JPL’s storied High Bay 2 clean room. John Timmer, Ars Technica, 24 June 2022 This is a crucial first step that ensures that any data going into a clean room is clean from the start. Jesse Redniss, Forbes, 27 June 2022 One of the leading suppliers, World Famous Tattoo Ink, has a new facility in Greenville, S.C., where each month in a sterile clean room, 400,000 bottles are filled and packaged. New York Times, 19 June 2022 Below the clean room are thousands of pumps, transformers, power cabinets, utility pipes and chillers that connect to production machines. New York Times, 8 Apr. 2022 Enlarge / One of two solar arrays on NASA’s Psyche spacecraft was successfully deployed in JPL’s storied High Bay 2 clean room in March. Jennifer Ouellette, Ars Technica, 13 Apr. 2022 Tiled in light colors like a clean room used for vastly more expensive machinery, the technicians—like the manager—won’t be able to hide, nor will they be allowed to make a mess. Car and Driver, 10 Apr. 2022 See More
Ashley Strickland, CNN, 18 Aug. 2022 One day last December, John Walker Moosbrugger, a 25-year-old project manager for the lunar robotics start-up Astrobotic, sat in front of the company’s clean room and watched as an instrument older than him was attached to a moon lander. Rebecca Boyle, Scientific American, 28 July 2022 Enlarge / One of two solar arrays on NASA’s Psyche spacecraft is successfully deployed in JPL’s storied High Bay 2 clean room. John Timmer, Ars Technica, 24 June 2022 This is a crucial first step that ensures that any data going into a clean room is clean from the start. Jesse Redniss, Forbes, 27 June 2022 One of the leading suppliers, World Famous Tattoo Ink, has a new facility in Greenville, S.C., where each month in a sterile clean room, 400,000 bottles are filled and packaged. New York Times, 19 June 2022 Below the clean room are thousands of pumps, transformers, power cabinets, utility pipes and chillers that connect to production machines. New York Times, 8 Apr. 2022 Enlarge / One of two solar arrays on NASA’s Psyche spacecraft was successfully deployed in JPL’s storied High Bay 2 clean room in March. Jennifer Ouellette, Ars Technica, 13 Apr. 2022 Tiled in light colors like a clean room used for vastly more expensive machinery, the technicians—like the manager—won’t be able to hide, nor will they be allowed to make a mess. Car and Driver, 10 Apr. 2022 See More Word History
First Known Use
1961, in the meaning defined above