Kingfish \King"fish`\, n. (Zo["o]l.) (a) An American marine food fish of the genus {Menticirrus}, especially {M. saxatilis}, or {M. nebulosos}, of the Atlantic coast; -- called also {whiting}, {surf whiting}, and {barb}. (b) The opah. (c) The common cero; also, the spotted cero. See {Cero}. (d) The queenfish.