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
Construction will then begin with the installation of caissons as a foundation for the casino by early February.
—Robert Channick, Chicago Tribune, 9 Jan. 2025
The Army suspended the Caisson Detachment operation in May 2023 following the deaths of two horses used to haul caissons in funerals at Arlington National Cemetery.
—John Bacon, USA TODAY, 7 Jan. 2025
Visitors can also explore The Blue Grotto, an underwater viewing area showcasing marine life thriving within the caissons.
—New Atlas, 20 Dec. 2024
See all Example Sentences for caisson 
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John Bacon, USA TODAY, 7 Jan. 2025
Construction will then begin with the installation of caissons as a foundation for the casino by early February.
—Robert Channick, Chicago Tribune, 9 Jan. 2025
The Army suspended the Caisson Detachment operation in May 2023 following the deaths of two horses used to haul caissons in funerals at Arlington National Cemetery.
—John Bacon, USA TODAY, 7 Jan. 2025
Visitors can also explore The Blue Grotto, an underwater viewing area showcasing marine life thriving within the caissons.
—New Atlas, 20 Dec. 2024
See all Example Sentences for caisson
Dictionary Entries Near caisson
Cite this Entry
“Caisson.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caisson. Accessed 11 Feb. 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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