The triangular middle part of each segment of the shell of
a barnacle.
1. (Zoöl.) 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 e...
