aquarium

 
Pronunciation: /əˈkwɛːrɪəm/

noun (plural aquaria /-rɪə/ or aquariums)

  • a transparent tank of water in which live fish and other water creatures and plants are kept.
  • a building containing tanks of live fish of different species.

Origin:

mid 19th century: from Latin, neuter of aquarius 'of water', on the pattern of vivarium

Spelling help

The plural of aquarium can be spelled either aquaria (as in the original Latin) or aquariums.