aythya americana

Noun

WordNet 3.0

North American diving duck with a grey-and-black body and reddish-brown headSynonyms: redhead Aythya americana

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]