cloud chamber

/ˌklaʊd ˈtʃeɪmbər/
IPA guide

Definitions of cloud chamber
  1. noun
    apparatus that detects the path of high-energy particles passing through a supersaturated vapor; each particle ionizes molecules along its path and small droplets condense on them to produce a visible track
    synonyms: Wilson cloud chamber
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    type of:
    particle detector
    a chamber in which particles can be made visible
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