clean room

American

noun

a room in which contaminants such as dust are reduced to a very low level by special procedures so that operations such as the manufacture and assembly of delicate equipment or the manipulation of biological materials can be performed effectively.

clean room Scientific

/ klēn /

A room that is maintained free of contaminants, such as dust or bacteria. Clean rooms are used in laboratory work and in the production of precision parts for electronic or aerospace equipment.
Also called white room

Etymology

Origin of clean room

An Americanism dating back to 1960–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

All testing was performed in controlled clean rooms designed specifically for microplastic analysis.

From Science Daily

Each fab will be 600,000 square feet—the size of more than 10 football fields—making them some of the biggest “clean rooms” ever built in America.

From The Wall Street Journal

Chip fabs take at least two years to come online, Weathers noted, and existing sites are limited from adding more clean room space, which is where chips are manufactured.

From MarketWatch

“Previously, capacity was constrained by clean room space, but this limitation is being addressed through the acceleration of new clean rooms and the re-purposing of existing ones,” they added.

From MarketWatch

Micron’s ability to increase supply is constrained by a lack of available clean room capacity, which is where memory is manufactured, they say.

From The Wall Street Journal

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023