CAISSON

• (noun) large watertight chamber used for construction under water

  synonyms : cofferdam , pneumatic caisson

• (noun) a chest to hold ammunition

  synonyms : ammunition chest

• (noun) a two-wheeled military vehicle carrying artillery ammunition

• (noun) an ornamental sunken panel in a ceiling or dome

  synonyms : coffer , lacuna

WordNet® 3.0, © 2006 by Princeton University.

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