clean room

  1. 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.

Origin of clean room

An Americanism dating back to 1960–65

Words Nearby clean room Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use clean room in a sentence

  • A bare enough room, certainly, not even a bit of carpet laid before the bed, but it was a clean room.

    Ester Ried Yet Speaking | Isabella Alden
  • We were shown at once into a clean room, and were soon surrounded by bustle and preparation for our comfort.

    In Indian Mexico (1908) | Frederick Starr
  • Miss Joyce: A very respectable place, indeed, and a very clean room you will get.

    Seven Short Plays | Lady Gregory
  • After the disappointments of the day, welcome once more, Charles, to the comforts of a clean room and a good fire.

    She Stoops to Conquer | Oliver Goldsmith
  • This fragrant, clean room bespoke character and family history.

    The Stolen Singer | Martha Idell Fletcher Bellinger

Scientific definitions for clean room

clean room

[ klēn ]

  1. 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

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.