noun, plural a·quar·i·ums, a·quar·i·a [uh-kwair-ee-uh] /əˈkwɛər i ə/.
Origin of aquarium
noun plural -riums or -ria (-rɪə)
Word Origin for aquarium
1830, noun use of neuter of Latin aquarius "pertaining to water," as a noun, "water-carrier," genitive of aqua "water" (see aqua-). The word existed in Latin, but there it meant "drinking place for cattle." Originally especially for growing aquatic plants; An earlier attempt at a name for "fish tank" was marine vivarium.