Any one of several species of fish-eating eagles of the genus Haliæetus and allied genera, as the North Pacific sea eagle (H. pelagicus), which has white shoulders, head, rump, and tail; the European white-tailed eagle (H. albicilla); and the Indian white-tailed sea eagle, or fishing eagle (Polioaëtus ichthyaëtus). The bald eagle and the osprey are also sometimes classed as sea eagles. [1913 Webster]