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Meaning of controlled atmosphere in English:

controlled atmosphere

Pronunciation /kənˌtrəʊld ˈatməsfɪə/

noun

  • An atmosphere or environment which is regulated to ensure conditions such as temperature, air quality, humidity, etc., remain stable, typically for carrying out an industrial process, a scientific experiment, or (now especially) for the storage and transportation of food.

Origin

Late 19th century; earliest use found in American Machinist. From controlled + atmosphere.