a. 1. Covered with a hood. [ 1913 Webster ]

2. Furnished with a hood or something like a hood. [ 1913 Webster ]

3. Hood-shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [ 1913 Webster ]

4. (Zool.) (a) Having the head conspicuously different in color from the rest of the plumage; -- said of birds. (b) Having a hoodlike crest or prominence on the head or neck; as, the hooded seal; a hooded snake. [ 1913 Webster ]

Hooded crow, a European crow (Corvus cornix); -- called also hoody, dun crow, and royston crow. --
Hooded gull, the European black-headed pewit or gull. --
Hooded merganser. See Merganser. --
Hooded seal, a large North Atlantic seal (Cystophora cristata). The male has a large, inflatible, hoodlike sac upon the head. Called also hoodcap. --
Hooded sheldrake, the hooded merganser. See Merganser. --
Hooded snake. See Cobra de capello, Asp, Haje, etc. --
Hooded warbler, a small American warbler (Sylvania mitrata). [ 1913 Webster ]