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

Just beyond the resort gates, the Land of Legends awaits—a nearby fantasy theme park with rollercoasters, aquariums, and a daily dolphin show (with free access and a complimentary shuttle for guests staying at The Crown). —Lewis Nunn, Forbes.com, 12 Aug. 2025

According to the mother, Britney Taryn, her son has been visiting the aquarium for at least four years. —Saleen Martin, USA Today, 4 Aug. 2025

Zoo Miami funds Lion Landscapes, which helps protect wild lions, and works with other zoos and aquariums to save them and other animals from extinction. —Devoun Cetoute, Miami Herald, 26 July 2025

Only about six aquariums worldwide are known to keep manta rays, according to a federal report. —Skyler Swisher, The Orlando Sentinel, 25 July 2025

Word History

Etymology

probably alteration of aquatic vivarium

First Known Use

circa 1847, in the meaning defined at sense 1

Phrases Containing aquarium

• tropical aquarium

Rhymes for aquarium

• herbarium
• ovarium
• puparium
• samarium
• zoarium
• armamentarium
• cerium
• honorarium
• planetarium
• sanitarium

Kids 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