Aquarium Definition

ə-kwârē-əm

aquaria, aquariums

noun

aquaria, aquariums

A tank, bowl, or other water-filled enclosure in which living fish or other aquatic animals and plants are kept.

American Heritage

A tank, usually with glass sides, or a pool, bowl, etc. for keeping live water animals and water plants.

Webster's New World

A place for the public exhibition of live aquatic animals and plants.

American Heritage

A building where such collections are exhibited.

Webster's New World

The definition of an aquarium is a container that holds marine plants and animals, or a building where exhibits of marine plants and animals are set up for visitors to view.

An example of an aquarium is a fish tank.

An example of an aquarium would be the fish exhibit in a zoo.

YourDictionary

Synonyms:

Synonyms:
fish-tank
marine museum
pool
tank
fishbowl
artificial pond
marine exhibit
aquatic museum

Other Word Forms of Aquarium

Noun

Singular:

aquarium

Plural:

aquaria, aquariums

Origin of Aquarium

Latin aquārium source of water from neuter of aquārius of water from aqua water akw-ā- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
From Latin aquārium, neuter of aquārius (“of or pertaining to water”), from aqua

From Wiktionary