Illustration of caisson
- caisson 1b
1
a
: a chest to hold ammunition
b
: a usually 2-wheeled vehicle for artillery ammunition attachable to a horse-drawn limber
also
: a limber with its attached caisson
2
a
: a watertight chamber used in construction work under water or as a foundation
b
: a hollow floating box or a boat used as a floodgate for a dock or basin
3
Examples of caisson in a Sentence
Recent Examples on the Web
The Army hired experts for advice that ranged from finding the right horses for caisson duty to designing the curriculum for soldiers who care and ride them.
—
John Bacon, USA TODAY, 7 Jan. 2025
Ronald Reagan, a noted enthusiast did, and that’s the last time the caisson unit took part.
—Tom Vanden Brook, USA TODAY, 6 Jan. 2025
The Army suspended the caisson operation in 2023.
—Tom Vanden Brook, USA TODAY, 6 Jan. 2025
Bally’s began driving foundational caissons into the ground in February, with the permanent casino targeted for a September 2026 opening, the company said.
—Robert Channick, Chicago Tribune, 28 Feb. 2025
See All Example Sentences for caisson
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John Bacon, USA TODAY, 7 Jan. 2025
Ronald Reagan, a noted enthusiast did, and that’s the last time the caisson unit took part.
—Tom Vanden Brook, USA TODAY, 6 Jan. 2025
The Army suspended the caisson operation in 2023.
—Tom Vanden Brook, USA TODAY, 6 Jan. 2025
Bally’s began driving foundational caissons into the ground in February, with the permanent casino targeted for a September 2026 opening, the company said.
—Robert Channick, Chicago Tribune, 28 Feb. 2025
See All Example Sentences for caisson
Cite this Entry
“Caisson.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caisson. Accessed 23 Apr. 2025.
Copy CitationKids Definition
caisson
noun
cais·son
ˈkā-ˌsän 
ˈkā-sᵊn
1
a
: a chest for ammunition
b
: a usually two-wheeled vehicle for artillery ammunition
2
: a watertight chamber used in construction work underwater or as a foundation
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