Definition of "barramundi"

A diadromous fish of species Lates calcarifer, of the Centropomidae family, order Perciformes, widely distributed in the Indo-West Pacific; a popular food fish.  examples

(Australia) Either of two fish, Scleropages leichardti and S. jardinii, of the family Osteoglossidae.  examples

(Australia, obsolete) The fish Neoceratodus forsteri of the family Neoceratodontidae; the Australian lungfish.