Gilthead \Gilt"head`\, n. (Zo["o]l.) A marine fish. The name is applied to two species: (a) The {Pagrus, or Chrysophrys, auratus}, a valuable food fish common in the Mediterranean (so named from its golden-colored head); -- called also {giltpoll}. (b) The {Crenilabrus melops}, of the British coasts; -- called also {golden maid}, {conner}, {sea partridge}.