'Aythya Americana' definitions:
Definition of 'Aythya americana'
(from WordNet)
noun
North American diving duck with a grey-and-black body and reddish-brown head [syn: redhead, Aythya americana]
Definition of 'Aythya Americana'
From: GCIDE
- Redhead \Red"head`\ (-h?d`), n.
- 1. A person having red hair. [1913 Webster]
- 2. (Zool.) (a) An American duck (Aythya Americana) highly esteemed as a game bird. It is closely allied to the canvasback, but is smaller and its head brighter red. Called also red-headed duck. American poachard, grayback, and fall duck. See Illust. under Poachard. (b) The red-headed woodpecker. See Woodpecker. [1913 Webster]
- 3. (Bot.) A kind of milkweed (Asclepias Curassavica) with red flowers. It is used in medicine. [1913 Webster]