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]