caisson
英 [kəˈsuːn]
美 [ˈkeɪsən]
n. 弹药箱；弹药车; 地雷箱，（作地雷用的）火药箱; 沉箱，潜水箱
复数：caissons
COCA.30044
英英释义
noun
- large watertight chamber used for construction under water
- a chest to hold ammunition
- a two-wheeled military vehicle carrying artillery ammunition
- an ornamental sunken panel in a ceiling or dome