Definition of

Caisson

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

via WordNet, Princeton University

Alternate forms of Caisson

Hypernyms: chamber, chest, military vehicle, panel

Origin of the word Caisson

  1. 1704, from Fr. caisson "ammunition wagon, box, crate," from M.Fr. caisson "large box" (16c.), from It. cassone, augmentive form of cassa "a chest," from L. capsa "a box" (see case (2)). more

via Online Etymology Dictionary, ©2001 Douglas Harper

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