Meaning of caisson in English

1. Pronunciation

   /ˈkeɪs(ə)n/

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1. Noun

   caisson

   Etymology

   late 17th century: from French, literally ‘large chest’, from Italian cassone, the spelling having been altered in French by association with caisse‘case’

   Definitions

   1. an ornamental sunken panel in a ceiling or dome
2. 2. a two-wheeled military vehicle carrying artillery ammunition
3. 3. a chest to hold ammunition
4. 4. large watertight chamber used for construction under water