Definition of controlled atmosphere in English:

controlled atmosphere

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.

Pronunciation

controlled atmosphere

/kənˌtrəʊld ˈatməsfɪə/