1. (Science: zoology) The name of several species of herons which bear plumes on the back. They are generally white. Among the best known species are the American egret (Ardea, or Herodias, egretta); the great egret (a. Alba); the little egret (a. Garzetta), of Europe; and the American snowy egret (a. Candidissima). A bunch of egrets killed for their plumage. (g. W. Cable)
See: Aigret, heron.