1. A large South American freshwater fish (Osteoglossum bicirrhosum) with silvery scales, popular in aquariums.
Usage: Also called silver arowana or dragon fish.; Native to the Amazon River basin.

Examples

• The arahuana is prized by aquarium enthusiasts for its striking appearance.
• In the wild, the arahuana inhabits slow-moving rivers and floodplain forests.
• Many collectors keep arahuana fish in large tanks to accommodate their size.
• The arahuana can grow up to three feet long in captivity.