Emily Dickinson Lexicon

COR'MO-RANT, n. [Fr. cormoran; Sp. corvejon. Cormorant is supposed to be corrupted from Corvus marinus, sea raven. The Welsh also call the fowl morvran, sea crow.]

1. The water raven, a large fowl of the pelican kind: the head and neck are black; the coverts of the wings, the scapulars and the back are of a deep green, edged with black and glossed with blue. The base of the lower mandible is covered with a naked yellow skin, which extends under the chin and forms a sort of pouch. This fowl occupies the cliffs by the sea, feeds on fish, and is extremely voracious. – Encyc.
2. A glutton.