aquar·​i·​um | \ ə-ˈkwer-ē-əm How to pronounce aquarium (audio) \
plural aquariums or aquaria\ ə-​ˈkwer-​ē-​ə How to pronounce aquaria (audio) \

Definition of aquarium

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 Other hot topics in the automatic-takedown spree include recent Democratic Party primaries in the United States... and the recent YouTube viral sensation of penguins running free in a Chicago aquarium. Sam Machkovech, Ars Technica, "Reputable sites swept up in FB’s latest coronavirus-minded spam cleanse [Updated]," 17 Mar. 2020 The haenyeos swim by as if exhibits in an aquarium. Jesse Green, New York Times, "Review: In ‘Endlings,’ the Pain of Swimming Between Worlds," 9 Mar. 2020 Winter Family Days is popular, the aquarium says, and weekends and holidays sell out fast. Briana Rice,, "Newport Aquarium offering free admission for kids," 3 Jan. 2020 Thus mounted, the animals were placed in the aquarium, sometimes fully submerged, sometimes partially. Jennifer Ouellette, Ars Technica, "When the medium matters: The mighty mantis shrimp pulls its punch in air," 3 Mar. 2020 Even the water in the aquarium Josie and Alan visit in New York floats an Evian logo. Anne Cohen,, "Josie & The Pussycats Was Way Ahead Of Its Time," 4 Feb. 2020 Several of our live mussel ambassadors will be in an aquarium at the library where visitors can see this unique and important aquatic species without having to visit a nearby stream. Rich Cogen,, "Mussels in the Classroom to visit Boone County Library," 14 Jan. 2020 The cuttlefish hovers in the aquarium, its fins rippling and large, limpid eyes glistening. New York Times, "Yes, This Cuttlefish Is Wearing 3-D Glasses," 8 Jan. 2020 Until a few years ago, eels lived in an aquarium inside the restaurant, from which the chef would grab them. The Economist, "The mysterious life and times of eels," 18 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aquarium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aquarium

circa 1847, in the meaning defined at sense 1

History and Etymology for aquarium

probably alteration of aquatic vivarium

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Time Traveler for aquarium

Time Traveler

The first known use of aquarium was circa 1847

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Statistics for aquarium

Last Updated

21 Mar 2020

Cite this Entry

“Aquarium.” Dictionary, Merriam-Webster, Accessed 30 Mar. 2020.

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How to pronounce aquarium (audio)

English Language Learners Definition of aquarium

: a glass or plastic container in which fish and other water animals and plants can live
: a building people can visit to see water animals and plants


aquar·​i·​um | \ ə-ˈkwer-ē-əm How to pronounce aquarium (audio) \

Kids Definition of aquarium

1 : a container (as a tank or bowl) in which fish and other water animals and plants can live
2 : a building in which water animals or water plants are exhibited

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