aquarium
noun
aquar·i·um
ə-ˈkwer-ē-əm 
plural aquariums or aquaria
ə-ˈkwer-ē-ə
1
: a container (such as a glass tank) or an artificial pond in which living aquatic animals or plants are kept
2
: an establishment where aquatic organisms are kept and exhibited
Examples of aquarium in a Sentence
Recent Examples on the Web
Launched in 1960, these tiny interactive aquariums have been a childhood staple for generations.
—
Hannah Malach, InStyle, 2 Apr. 2026
The beauty of many fish species is highlighted in fish stores, aquariums, and in home collections.
—Encyclopedia Britannica, 2 Apr. 2026
Power outages switched off the aquarium’s electrical pumps, throwing their aquariums into darkness.
—Phillip Valys, Sun Sentinel, 1 Apr. 2026
The adjoining Topsail Aquarium offers night-time ghost crab hunts and has a touch tank aquarium with horseshoe crabs, bamboo sharks, and other marine life.
—Valerie Fraser Luesse, Southern Living, 1 Apr. 2026
See All Example Sentences for aquarium
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Hannah Malach, InStyle, 2 Apr. 2026
The beauty of many fish species is highlighted in fish stores, aquariums, and in home collections.
—Encyclopedia Britannica, 2 Apr. 2026
Power outages switched off the aquarium’s electrical pumps, throwing their aquariums into darkness.
—Phillip Valys, Sun Sentinel, 1 Apr. 2026
The adjoining Topsail Aquarium offers night-time ghost crab hunts and has a touch tank aquarium with horseshoe crabs, bamboo sharks, and other marine life.
—Valerie Fraser Luesse, Southern Living, 1 Apr. 2026
See All Example Sentences for aquarium
Cite this Entry
“Aquarium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aquarium. Accessed 5 Apr. 2026.
Copy CitationKids Definition
aquarium
noun
aquar·i·um
ə-ˈkwar-ē-əm
-ˈkwer-
plural aquariums or aquaria
-ē-ə
: a container (as a glass tank) in which living water animals or plants are kept
also
: an establishment where collections of such animals or plants are kept and shown
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