Robalo \Rob"a*lo\, n. [Sp. r['o]balo.] Any of several pikelike marine fishes of the West Indies and tropical America constituting the family {Oxylabracidae}, esp. the largest species ({Oxylabrax undecimalis}, syn. {Centropomus undecimalis}), a valuable food fish called also {snook}, the smaller species being called